Home / 47,798,079.54-71,697,009.91-20,486,663.16

Finding the Fourth Proportional to 47,798,079.54, 71,697,009.91 and 20,486,663.16

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Solution

The fourth proportional to 47,798,079.54, 71,697,009.91 and 20,486,663.16 is: 30,729,947.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,798,079.54 : 71,697,009.91 = 20,486,663.16 : x
  2. Step 2: Convert to fraction form
    47,798,079.54/71,697,009.91 = 20,486,663.16/x
  3. Step 3: Cross multiply
    47,798,079.54x = 71,697,009.91 × 20,486,663.16
  4. Step 4: Simplify right side
    47,798,079.54x = 1,468,832,491,605,351.75
  5. Step 5: Solve for x
    x = 1,468,832,491,605,351.75/47,798,079.54
  6. Step 6: Final answer
    x = 30,729,947.85

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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.