Home / 102,831,517.80-141,907,764.06-55,788,588.90

Finding the Fourth Proportional to 102,831,517.80, 141,907,764.06 and 55,788,588.90

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Solution

The fourth proportional to 102,831,517.80, 141,907,764.06 and 55,788,588.90 is: 76,988,398.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,831,517.80 : 141,907,764.06 = 55,788,588.90 : x
  2. Step 2: Convert to fraction form
    102,831,517.80/141,907,764.06 = 55,788,588.90/x
  3. Step 3: Cross multiply
    102,831,517.80x = 141,907,764.06 × 55,788,588.90
  4. Step 4: Simplify right side
    102,831,517.80x = 7,916,833,910,861,535
  5. Step 5: Solve for x
    x = 7,916,833,910,861,535/102,831,517.80
  6. Step 6: Final answer
    x = 76,988,398.89

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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.