Home / 81,631,296.60-112,646,937.75-50,690,806.44

Finding the Fourth Proportional to 81,631,296.60, 112,646,937.75 and 50,690,806.44

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Solution

The fourth proportional to 81,631,296.60, 112,646,937.75 and 50,690,806.44 is: 69,950,672.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,631,296.60 : 112,646,937.75 = 50,690,806.44 : x
  2. Step 2: Convert to fraction form
    81,631,296.60/112,646,937.75 = 50,690,806.44/x
  3. Step 3: Cross multiply
    81,631,296.60x = 112,646,937.75 × 50,690,806.44
  4. Step 4: Simplify right side
    81,631,296.60x = 5,710,164,117,543,979
  5. Step 5: Solve for x
    x = 5,710,164,117,543,979/81,631,296.60
  6. Step 6: Final answer
    x = 69,950,672.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.