Home / 516,379,761.59-712,583,326.42-281,425,387.10

Finding the Fourth Proportional to 516,379,761.59, 712,583,326.42 and 281,425,387.10

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Solution

The fourth proportional to 516,379,761.59, 712,583,326.42 and 281,425,387.10 is: 388,355,728.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,379,761.59 : 712,583,326.42 = 281,425,387.10 : x
  2. Step 2: Convert to fraction form
    516,379,761.59/712,583,326.42 = 281,425,387.10/x
  3. Step 3: Cross multiply
    516,379,761.59x = 712,583,326.42 × 281,425,387.10
  4. Step 4: Simplify right side
    516,379,761.59x = 200,539,038,474,493,344
  5. Step 5: Solve for x
    x = 200,539,038,474,493,344/516,379,761.59
  6. Step 6: Final answer
    x = 388,355,728.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.