Home / 393,720,008.74-590,443,246.23-219,109,505.92

Finding the Fourth Proportional to 393,720,008.74, 590,443,246.23 and 219,109,505.92

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Solution

The fourth proportional to 393,720,008.74, 590,443,246.23 and 219,109,505.92 is: 328,588,146.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,720,008.74 : 590,443,246.23 = 219,109,505.92 : x
  2. Step 2: Convert to fraction form
    393,720,008.74/590,443,246.23 = 219,109,505.92/x
  3. Step 3: Cross multiply
    393,720,008.74x = 590,443,246.23 × 219,109,505.92
  4. Step 4: Simplify right side
    393,720,008.74x = 129,371,727,955,256,192
  5. Step 5: Solve for x
    x = 129,371,727,955,256,192/393,720,008.74
  6. Step 6: Final answer
    x = 328,588,146.61

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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.