Home / 439,336,939.26-655,123,817.15-435,393,646.98

Finding the Fourth Proportional to 439,336,939.26, 655,123,817.15 and 435,393,646.98

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Solution

The fourth proportional to 439,336,939.26, 655,123,817.15 and 435,393,646.98 is: 649,243,718.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,336,939.26 : 655,123,817.15 = 435,393,646.98 : x
  2. Step 2: Convert to fraction form
    439,336,939.26/655,123,817.15 = 435,393,646.98/x
  3. Step 3: Cross multiply
    439,336,939.26x = 655,123,817.15 × 435,393,646.98
  4. Step 4: Simplify right side
    439,336,939.26x = 285,236,747,970,220,192
  5. Step 5: Solve for x
    x = 285,236,747,970,220,192/439,336,939.26
  6. Step 6: Final answer
    x = 649,243,718.16

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.