Home / 387,829,517.60-581,744,276.40-311,302,013.60

Finding the Fourth Proportional to 387,829,517.60, 581,744,276.40 and 311,302,013.60

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Solution

The fourth proportional to 387,829,517.60, 581,744,276.40 and 311,302,013.60 is: 466,953,020.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,829,517.60 : 581,744,276.40 = 311,302,013.60 : x
  2. Step 2: Convert to fraction form
    387,829,517.60/581,744,276.40 = 311,302,013.60/x
  3. Step 3: Cross multiply
    387,829,517.60x = 581,744,276.40 × 311,302,013.60
  4. Step 4: Simplify right side
    387,829,517.60x = 181,098,164,643,594,976
  5. Step 5: Solve for x
    x = 181,098,164,643,594,976/387,829,517.60
  6. Step 6: Final answer
    x = 466,953,020.40

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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.