Home / 81,656,352.60-122,342,811.30-52,887,679.80

Finding the Fourth Proportional to 81,656,352.60, 122,342,811.30 and 52,887,679.80

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Solution

The fourth proportional to 81,656,352.60, 122,342,811.30 and 52,887,679.80 is: 79,239,731.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,656,352.60 : 122,342,811.30 = 52,887,679.80 : x
  2. Step 2: Convert to fraction form
    81,656,352.60/122,342,811.30 = 52,887,679.80/x
  3. Step 3: Cross multiply
    81,656,352.60x = 122,342,811.30 × 52,887,679.80
  4. Step 4: Simplify right side
    81,656,352.60x = 6,470,427,429,866,221
  5. Step 5: Solve for x
    x = 6,470,427,429,866,221/81,656,352.60
  6. Step 6: Final answer
    x = 79,239,731.19

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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.