Home / 79,921,709.70-119,882,569.10-19,337,435.70

Finding the Fourth Proportional to 79,921,709.70, 119,882,569.10 and 19,337,435.70

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Solution

The fourth proportional to 79,921,709.70, 119,882,569.10 and 19,337,435.70 is: 29,006,154.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,921,709.70 : 119,882,569.10 = 19,337,435.70 : x
  2. Step 2: Convert to fraction form
    79,921,709.70/119,882,569.10 = 19,337,435.70/x
  3. Step 3: Cross multiply
    79,921,709.70x = 119,882,569.10 × 19,337,435.70
  4. Step 4: Simplify right side
    79,921,709.70x = 2,318,221,471,425,369.50
  5. Step 5: Solve for x
    x = 2,318,221,471,425,369.50/79,921,709.70
  6. Step 6: Final answer
    x = 29,006,154.65

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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.