Home / 20,611,037.92-28,442,691.12-11,443,444.96

Finding the Fourth Proportional to 20,611,037.92, 28,442,691.12 and 11,443,444.96

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Solution

The fourth proportional to 20,611,037.92, 28,442,691.12 and 11,443,444.96 is: 15,791,653.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,611,037.92 : 28,442,691.12 = 11,443,444.96 : x
  2. Step 2: Convert to fraction form
    20,611,037.92/28,442,691.12 = 11,443,444.96/x
  3. Step 3: Cross multiply
    20,611,037.92x = 28,442,691.12 × 11,443,444.96
  4. Step 4: Simplify right side
    20,611,037.92x = 325,482,370,346,000.81
  5. Step 5: Solve for x
    x = 325,482,370,346,000.81/20,611,037.92
  6. Step 6: Final answer
    x = 15,791,653.56

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