Home / 1,236,457,207.20-1,854,685,810.80-663,148,279.20

Finding the Fourth Proportional to 1,236,457,207.20, 1,854,685,810.80 and 663,148,279.20

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Solution

The fourth proportional to 1,236,457,207.20, 1,854,685,810.80 and 663,148,279.20 is: 994,722,418.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,236,457,207.20 : 1,854,685,810.80 = 663,148,279.20 : x
  2. Step 2: Convert to fraction form
    1,236,457,207.20/1,854,685,810.80 = 663,148,279.20/x
  3. Step 3: Cross multiply
    1,236,457,207.20x = 1,854,685,810.80 × 663,148,279.20
  4. Step 4: Simplify right side
    1,236,457,207.20x = 1,229,931,703,888,676,864
  5. Step 5: Solve for x
    x = 1,229,931,703,888,676,864/1,236,457,207.20
  6. Step 6: Final answer
    x = 994,722,418.80

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Half scale
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Double scale
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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.