Home / 80,021,110.38-120,031,667.01-19,436,428.14

Finding the Fourth Proportional to 80,021,110.38, 120,031,667.01 and 19,436,428.14

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Solution

The fourth proportional to 80,021,110.38, 120,031,667.01 and 19,436,428.14 is: 29,154,642.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,021,110.38 : 120,031,667.01 = 19,436,428.14 : x
  2. Step 2: Convert to fraction form
    80,021,110.38/120,031,667.01 = 19,436,428.14/x
  3. Step 3: Cross multiply
    80,021,110.38x = 120,031,667.01 × 19,436,428.14
  4. Step 4: Simplify right side
    80,021,110.38x = 2,332,986,870,364,274
  5. Step 5: Solve for x
    x = 2,332,986,870,364,274/80,021,110.38
  6. Step 6: Final answer
    x = 29,154,642.56

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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.