Home / 21,988,517.88-30,340,732.68-12,569,174.40

Finding the Fourth Proportional to 21,988,517.88, 30,340,732.68 and 12,569,174.40

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Solution

The fourth proportional to 21,988,517.88, 30,340,732.68 and 12,569,174.40 is: 17,343,504.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,988,517.88 : 30,340,732.68 = 12,569,174.40 : x
  2. Step 2: Convert to fraction form
    21,988,517.88/30,340,732.68 = 12,569,174.40/x
  3. Step 3: Cross multiply
    21,988,517.88x = 30,340,732.68 × 12,569,174.40
  4. Step 4: Simplify right side
    21,988,517.88x = 381,357,960,478,699.38
  5. Step 5: Solve for x
    x = 381,357,960,478,699.38/21,988,517.88
  6. Step 6: Final answer
    x = 17,343,504.58

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Why These Related Problems?

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