Home / 406,782,024.30-610,173,036.45-212,752,915.20

Finding the Fourth Proportional to 406,782,024.30, 610,173,036.45 and 212,752,915.20

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Solution

The fourth proportional to 406,782,024.30, 610,173,036.45 and 212,752,915.20 is: 319,129,372.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,782,024.30 : 610,173,036.45 = 212,752,915.20 : x
  2. Step 2: Convert to fraction form
    406,782,024.30/610,173,036.45 = 212,752,915.20/x
  3. Step 3: Cross multiply
    406,782,024.30x = 610,173,036.45 × 212,752,915.20
  4. Step 4: Simplify right side
    406,782,024.30x = 129,816,092,281,173,360
  5. Step 5: Solve for x
    x = 129,816,092,281,173,360/406,782,024.30
  6. Step 6: Final answer
    x = 319,129,372.80

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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.