Home / 1,191,489,367.40-1,787,234,051.10-824,157,348.20

Finding the Fourth Proportional to 1,191,489,367.40, 1,787,234,051.10 and 824,157,348.20

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Solution

The fourth proportional to 1,191,489,367.40, 1,787,234,051.10 and 824,157,348.20 is: 1,236,236,022.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,489,367.40 : 1,787,234,051.10 = 824,157,348.20 : x
  2. Step 2: Convert to fraction form
    1,191,489,367.40/1,787,234,051.10 = 824,157,348.20/x
  3. Step 3: Cross multiply
    1,191,489,367.40x = 1,787,234,051.10 × 824,157,348.20
  4. Step 4: Simplify right side
    1,191,489,367.40x = 1,472,962,076,167,319,296
  5. Step 5: Solve for x
    x = 1,472,962,076,167,319,296/1,191,489,367.40
  6. Step 6: Final answer
    x = 1,236,236,022.30

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Half scale
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Double scale
Find fourth proportional to 1,191,489,368.40, 1,787,234,052.60 and 824,157,349.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.