Home / 18,214,108.28-25,138,579.05-10,872,320.12

Finding the Fourth Proportional to 18,214,108.28, 25,138,579.05 and 10,872,320.12

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Solution

The fourth proportional to 18,214,108.28, 25,138,579.05 and 10,872,320.12 is: 15,005,657.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,214,108.28 : 25,138,579.05 = 10,872,320.12 : x
  2. Step 2: Convert to fraction form
    18,214,108.28/25,138,579.05 = 10,872,320.12/x
  3. Step 3: Cross multiply
    18,214,108.28x = 25,138,579.05 × 10,872,320.12
  4. Step 4: Simplify right side
    18,214,108.28x = 273,314,678,721,331.06
  5. Step 5: Solve for x
    x = 273,314,678,721,331.06/18,214,108.28
  6. Step 6: Final answer
    x = 15,005,657.95

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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.