Home / 387,097,008.40-580,645,512.60-223,838,333.20

Finding the Fourth Proportional to 387,097,008.40, 580,645,512.60 and 223,838,333.20

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Solution

The fourth proportional to 387,097,008.40, 580,645,512.60 and 223,838,333.20 is: 335,757,499.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,097,008.40 : 580,645,512.60 = 223,838,333.20 : x
  2. Step 2: Convert to fraction form
    387,097,008.40/580,645,512.60 = 223,838,333.20/x
  3. Step 3: Cross multiply
    387,097,008.40x = 580,645,512.60 × 223,838,333.20
  4. Step 4: Simplify right side
    387,097,008.40x = 129,970,723,720,443,600
  5. Step 5: Solve for x
    x = 129,970,723,720,443,600/387,097,008.40
  6. Step 6: Final answer
    x = 335,757,499.80

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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.