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Finding the Fourth Proportional to 387,104,002.80, 580,656,013.80 and 387,104,002.80

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Solution

The fourth proportional to 387,104,002.80, 580,656,013.80 and 387,104,002.80 is: 580,656,013.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,104,002.80 : 580,656,013.80 = 387,104,002.80 : x
  2. Step 2: Convert to fraction form
    387,104,002.80/580,656,013.80 = 387,104,002.80/x
  3. Step 3: Cross multiply
    387,104,002.80x = 580,656,013.80 × 387,104,002.80
  4. Step 4: Simplify right side
    387,104,002.80x = 224,774,267,191,872,032
  5. Step 5: Solve for x
    x = 224,774,267,191,872,032/387,104,002.80
  6. Step 6: Final answer
    x = 580,656,013.80

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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.