Home / 406,782,024.80-610,173,037.20-212,752,915.70

Finding the Fourth Proportional to 406,782,024.80, 610,173,037.20 and 212,752,915.70

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Solution

The fourth proportional to 406,782,024.80, 610,173,037.20 and 212,752,915.70 is: 319,129,373.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,782,024.80 : 610,173,037.20 = 212,752,915.70 : x
  2. Step 2: Convert to fraction form
    406,782,024.80/610,173,037.20 = 212,752,915.70/x
  3. Step 3: Cross multiply
    406,782,024.80x = 610,173,037.20 × 212,752,915.70
  4. Step 4: Simplify right side
    406,782,024.80x = 129,816,092,745,824,560
  5. Step 5: Solve for x
    x = 129,816,092,745,824,560/406,782,024.80
  6. Step 6: Final answer
    x = 319,129,373.55

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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.