Home / 86,626,868.21-129,940,523.82-21,930,680.19

Finding the Fourth Proportional to 86,626,868.21, 129,940,523.82 and 21,930,680.19

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Solution

The fourth proportional to 86,626,868.21, 129,940,523.82 and 21,930,680.19 is: 32,896,076.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,626,868.21 : 129,940,523.82 = 21,930,680.19 : x
  2. Step 2: Convert to fraction form
    86,626,868.21/129,940,523.82 = 21,930,680.19/x
  3. Step 3: Cross multiply
    86,626,868.21x = 129,940,523.82 × 21,930,680.19
  4. Step 4: Simplify right side
    86,626,868.21x = 2,849,684,071,617,497
  5. Step 5: Solve for x
    x = 2,849,684,071,617,497/86,626,868.21
  6. Step 6: Final answer
    x = 32,896,076.36

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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.