Home / 82,518,178.58-123,781,379.26-31,404,158.90

Finding the Fourth Proportional to 82,518,178.58, 123,781,379.26 and 31,404,158.90

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Solution

The fourth proportional to 82,518,178.58, 123,781,379.26 and 31,404,158.90 is: 47,107,803.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,518,178.58 : 123,781,379.26 = 31,404,158.90 : x
  2. Step 2: Convert to fraction form
    82,518,178.58/123,781,379.26 = 31,404,158.90/x
  3. Step 3: Cross multiply
    82,518,178.58x = 123,781,379.26 × 31,404,158.90
  4. Step 4: Simplify right side
    82,518,178.58x = 3,887,250,103,142,204.50
  5. Step 5: Solve for x
    x = 3,887,250,103,142,204.50/82,518,178.58
  6. Step 6: Final answer
    x = 47,107,803.03

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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.