Home / 290,034,737.28-400,253,039.28-157,879,532.16

Finding the Fourth Proportional to 290,034,737.28, 400,253,039.28 and 157,879,532.16

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Solution

The fourth proportional to 290,034,737.28, 400,253,039.28 and 157,879,532.16 is: 217,876,531.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,034,737.28 : 400,253,039.28 = 157,879,532.16 : x
  2. Step 2: Convert to fraction form
    290,034,737.28/400,253,039.28 = 157,879,532.16/x
  3. Step 3: Cross multiply
    290,034,737.28x = 400,253,039.28 × 157,879,532.16
  4. Step 4: Simplify right side
    290,034,737.28x = 63,191,762,587,144,496
  5. Step 5: Solve for x
    x = 63,191,762,587,144,496/290,034,737.28
  6. Step 6: Final answer
    x = 217,876,531.55

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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.