Home / 661,740,000.80-992,610,001.20-317,366,232.80

Finding the Fourth Proportional to 661,740,000.80, 992,610,001.20 and 317,366,232.80

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Solution

The fourth proportional to 661,740,000.80, 992,610,001.20 and 317,366,232.80 is: 476,049,349.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,740,000.80 : 992,610,001.20 = 317,366,232.80 : x
  2. Step 2: Convert to fraction form
    661,740,000.80/992,610,001.20 = 317,366,232.80/x
  3. Step 3: Cross multiply
    661,740,000.80x = 992,610,001.20 × 317,366,232.80
  4. Step 4: Simplify right side
    661,740,000.80x = 315,020,896,720,447,488
  5. Step 5: Solve for x
    x = 315,020,896,720,447,488/661,740,000.80
  6. Step 6: Final answer
    x = 476,049,349.20

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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.