Home / 1,299,100,011.40-1,948,650,017.10-885,851,489.80

Finding the Fourth Proportional to 1,299,100,011.40, 1,948,650,017.10 and 885,851,489.80

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Solution

The fourth proportional to 1,299,100,011.40, 1,948,650,017.10 and 885,851,489.80 is: 1,328,777,234.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,100,011.40 : 1,948,650,017.10 = 885,851,489.80 : x
  2. Step 2: Convert to fraction form
    1,299,100,011.40/1,948,650,017.10 = 885,851,489.80/x
  3. Step 3: Cross multiply
    1,299,100,011.40x = 1,948,650,017.10 × 885,851,489.80
  4. Step 4: Simplify right side
    1,299,100,011.40x = 1,726,214,520,746,830,336
  5. Step 5: Solve for x
    x = 1,726,214,520,746,830,336/1,299,100,011.40
  6. Step 6: Final answer
    x = 1,328,777,234.70

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Half scale
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Double scale
Find fourth proportional to 1,299,100,012.40, 1,948,650,018.60 and 885,851,490.80
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.