Home / 102,022,721.28-140,790,209.22-55,611,956.88

Finding the Fourth Proportional to 102,022,721.28, 140,790,209.22 and 55,611,956.88

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Solution

The fourth proportional to 102,022,721.28, 140,790,209.22 and 55,611,956.88 is: 76,743,875.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,022,721.28 : 140,790,209.22 = 55,611,956.88 : x
  2. Step 2: Convert to fraction form
    102,022,721.28/140,790,209.22 = 55,611,956.88/x
  3. Step 3: Cross multiply
    102,022,721.28x = 140,790,209.22 × 55,611,956.88
  4. Step 4: Simplify right side
    102,022,721.28x = 7,829,619,044,268,819
  5. Step 5: Solve for x
    x = 7,829,619,044,268,819/102,022,721.28
  6. Step 6: Final answer
    x = 76,743,875.74

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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.