Home / 12,690,242.70-19,012,269.33-11,329,753.74

Finding the Fourth Proportional to 12,690,242.70, 19,012,269.33 and 11,329,753.74

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Solution

The fourth proportional to 12,690,242.70, 19,012,269.33 and 11,329,753.74 is: 16,974,011.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,690,242.70 : 19,012,269.33 = 11,329,753.74 : x
  2. Step 2: Convert to fraction form
    12,690,242.70/19,012,269.33 = 11,329,753.74/x
  3. Step 3: Cross multiply
    12,690,242.70x = 19,012,269.33 × 11,329,753.74
  4. Step 4: Simplify right side
    12,690,242.70x = 215,404,329,547,454.78
  5. Step 5: Solve for x
    x = 215,404,329,547,454.78/12,690,242.70
  6. Step 6: Final answer
    x = 16,974,011.82

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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.