Home / 20,853,468.48-31,280,140.11-5,291,266.92

Finding the Fourth Proportional to 20,853,468.48, 31,280,140.11 and 5,291,266.92

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Solution

The fourth proportional to 20,853,468.48, 31,280,140.11 and 5,291,266.92 is: 7,936,884.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,853,468.48 : 31,280,140.11 = 5,291,266.92 : x
  2. Step 2: Convert to fraction form
    20,853,468.48/31,280,140.11 = 5,291,266.92/x
  3. Step 3: Cross multiply
    20,853,468.48x = 31,280,140.11 × 5,291,266.92
  4. Step 4: Simplify right side
    20,853,468.48x = 165,511,570,617,008.16
  5. Step 5: Solve for x
    x = 165,511,570,617,008.16/20,853,468.48
  6. Step 6: Final answer
    x = 7,936,884.49

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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.