Home / 516,915,612.69-713,348,098.10-281,967,318.06

Finding the Fourth Proportional to 516,915,612.69, 713,348,098.10 and 281,967,318.06

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Solution

The fourth proportional to 516,915,612.69, 713,348,098.10 and 281,967,318.06 is: 389,117,382.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,915,612.69 : 713,348,098.10 = 281,967,318.06 : x
  2. Step 2: Convert to fraction form
    516,915,612.69/713,348,098.10 = 281,967,318.06/x
  3. Step 3: Cross multiply
    516,915,612.69x = 713,348,098.10 × 281,967,318.06
  4. Step 4: Simplify right side
    516,915,612.69x = 201,140,850,063,048,960
  5. Step 5: Solve for x
    x = 201,140,850,063,048,960/516,915,612.69
  6. Step 6: Final answer
    x = 389,117,382.27

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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.