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Finding the Fourth Proportional to 219,951,419.42, 330,215,472.81 and 147,492,428.42

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Solution

The fourth proportional to 219,951,419.42, 330,215,472.81 and 147,492,428.42 is: 221,431,996.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,951,419.42 : 330,215,472.81 = 147,492,428.42 : x
  2. Step 2: Convert to fraction form
    219,951,419.42/330,215,472.81 = 147,492,428.42/x
  3. Step 3: Cross multiply
    219,951,419.42x = 330,215,472.81 × 147,492,428.42
  4. Step 4: Simplify right side
    219,951,419.42x = 48,704,281,986,605,376
  5. Step 5: Solve for x
    x = 48,704,281,986,605,376/219,951,419.42
  6. Step 6: Final answer
    x = 221,431,996.73

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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.