Home / 516,287,532.87-712,472,850.86-281,337,466.77

Finding the Fourth Proportional to 516,287,532.87, 712,472,850.86 and 281,337,466.77

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Solution

The fourth proportional to 516,287,532.87, 712,472,850.86 and 281,337,466.77 is: 388,243,554.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,287,532.87 : 712,472,850.86 = 281,337,466.77 : x
  2. Step 2: Convert to fraction form
    516,287,532.87/712,472,850.86 = 281,337,466.77/x
  3. Step 3: Cross multiply
    516,287,532.87x = 712,472,850.86 × 281,337,466.77
  4. Step 4: Simplify right side
    516,287,532.87x = 200,445,307,001,945,728
  5. Step 5: Solve for x
    x = 200,445,307,001,945,728/516,287,532.87
  6. Step 6: Final answer
    x = 388,243,554.69

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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.