Home / 10,872,115.20-16,320,614.40-6,386,918.40

Finding the Fourth Proportional to 10,872,115.20, 16,320,614.40 and 6,386,918.40

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Solution

The fourth proportional to 10,872,115.20, 16,320,614.40 and 6,386,918.40 is: 9,587,686.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,872,115.20 : 16,320,614.40 = 6,386,918.40 : x
  2. Step 2: Convert to fraction form
    10,872,115.20/16,320,614.40 = 6,386,918.40/x
  3. Step 3: Cross multiply
    10,872,115.20x = 16,320,614.40 × 6,386,918.40
  4. Step 4: Simplify right side
    10,872,115.20x = 104,238,432,410,664.97
  5. Step 5: Solve for x
    x = 104,238,432,410,664.97/10,872,115.20
  6. Step 6: Final answer
    x = 9,587,686.53

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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.