Home / 15,062,287,138.47-20,785,332,072.60-8,195,712,118.83

Finding the Fourth Proportional to 15,062,287,138.47, 20,785,332,072.60 and 8,195,712,118.83

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Solution

The fourth proportional to 15,062,287,138.47, 20,785,332,072.60 and 8,195,712,118.83 is: 11,309,743,095.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,062,287,138.47 : 20,785,332,072.60 = 8,195,712,118.83 : x
  2. Step 2: Convert to fraction form
    15,062,287,138.47/20,785,332,072.60 = 8,195,712,118.83/x
  3. Step 3: Cross multiply
    15,062,287,138.47x = 20,785,332,072.60 × 8,195,712,118.83
  4. Step 4: Simplify right side
    15,062,287,138.47x = 170,350,597,961,313,681,408
  5. Step 5: Solve for x
    x = 170,350,597,961,313,681,408/15,062,287,138.47
  6. Step 6: Final answer
    x = 11,309,743,095.14

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1.5x scale

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.