Home / 1,321,023,308.80-1,981,534,963.20-885,666,841.60

Finding the Fourth Proportional to 1,321,023,308.80, 1,981,534,963.20 and 885,666,841.60

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Solution

The fourth proportional to 1,321,023,308.80, 1,981,534,963.20 and 885,666,841.60 is: 1,328,500,262.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,023,308.80 : 1,981,534,963.20 = 885,666,841.60 : x
  2. Step 2: Convert to fraction form
    1,321,023,308.80/1,981,534,963.20 = 885,666,841.60/x
  3. Step 3: Cross multiply
    1,321,023,308.80x = 1,981,534,963.20 × 885,666,841.60
  4. Step 4: Simplify right side
    1,321,023,308.80x = 1,754,979,812,377,316,352
  5. Step 5: Solve for x
    x = 1,754,979,812,377,316,352/1,321,023,308.80
  6. Step 6: Final answer
    x = 1,328,500,262.40

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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.