Home / 21,680,084.12-29,915,758.17-12,388,255.11

Finding the Fourth Proportional to 21,680,084.12, 29,915,758.17 and 12,388,255.11

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Solution

The fourth proportional to 21,680,084.12, 29,915,758.17 and 12,388,255.11 is: 17,094,216.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,680,084.12 : 29,915,758.17 = 12,388,255.11 : x
  2. Step 2: Convert to fraction form
    21,680,084.12/29,915,758.17 = 12,388,255.11/x
  3. Step 3: Cross multiply
    21,680,084.12x = 29,915,758.17 × 12,388,255.11
  4. Step 4: Simplify right side
    21,680,084.12x = 370,604,044,019,026.75
  5. Step 5: Solve for x
    x = 370,604,044,019,026.75/21,680,084.12
  6. Step 6: Final answer
    x = 17,094,216.15

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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.