Home / 77,004,817.60-115,451,239.20-31,543,211.20

Finding the Fourth Proportional to 77,004,817.60, 115,451,239.20 and 31,543,211.20

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Solution

The fourth proportional to 77,004,817.60, 115,451,239.20 and 31,543,211.20 is: 47,291,882.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,004,817.60 : 115,451,239.20 = 31,543,211.20 : x
  2. Step 2: Convert to fraction form
    77,004,817.60/115,451,239.20 = 31,543,211.20/x
  3. Step 3: Cross multiply
    77,004,817.60x = 115,451,239.20 × 31,543,211.20
  4. Step 4: Simplify right side
    77,004,817.60x = 3,641,702,821,387,319
  5. Step 5: Solve for x
    x = 3,641,702,821,387,319/77,004,817.60
  6. Step 6: Final answer
    x = 47,291,882.96

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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.