Home / 71,468,823.52-107,204,634.96-20,352,155.68

Finding the Fourth Proportional to 71,468,823.52, 107,204,634.96 and 20,352,155.68

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Solution

The fourth proportional to 71,468,823.52, 107,204,634.96 and 20,352,155.68 is: 30,528,632.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,468,823.52 : 107,204,634.96 = 20,352,155.68 : x
  2. Step 2: Convert to fraction form
    71,468,823.52/107,204,634.96 = 20,352,155.68/x
  3. Step 3: Cross multiply
    71,468,823.52x = 107,204,634.96 × 20,352,155.68
  4. Step 4: Simplify right side
    71,468,823.52x = 2,181,845,420,323,490.50
  5. Step 5: Solve for x
    x = 2,181,845,420,323,490.50/71,468,823.52
  6. Step 6: Final answer
    x = 30,528,632.11

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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.