Home / 87,695,286.40-131,542,929.60-42,345,654.40

Finding the Fourth Proportional to 87,695,286.40, 131,542,929.60 and 42,345,654.40

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Solution

The fourth proportional to 87,695,286.40, 131,542,929.60 and 42,345,654.40 is: 63,518,481.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,695,286.40 : 131,542,929.60 = 42,345,654.40 : x
  2. Step 2: Convert to fraction form
    87,695,286.40/131,542,929.60 = 42,345,654.40/x
  3. Step 3: Cross multiply
    87,695,286.40x = 131,542,929.60 × 42,345,654.40
  4. Step 4: Simplify right side
    87,695,286.40x = 5,570,271,435,605,130
  5. Step 5: Solve for x
    x = 5,570,271,435,605,130/87,695,286.40
  6. Step 6: Final answer
    x = 63,518,481.60

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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.