Home / 21,902,531.85-30,222,136.53-12,608,306.28

Finding the Fourth Proportional to 21,902,531.85, 30,222,136.53 and 12,608,306.28

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Solution

The fourth proportional to 21,902,531.85, 30,222,136.53 and 12,608,306.28 is: 17,397,529.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,902,531.85 : 30,222,136.53 = 12,608,306.28 : x
  2. Step 2: Convert to fraction form
    21,902,531.85/30,222,136.53 = 12,608,306.28/x
  3. Step 3: Cross multiply
    21,902,531.85x = 30,222,136.53 × 12,608,306.28
  4. Step 4: Simplify right side
    21,902,531.85x = 381,049,953,806,216.38
  5. Step 5: Solve for x
    x = 381,049,953,806,216.38/21,902,531.85
  6. Step 6: Final answer
    x = 17,397,529.95

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1.5x scale

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.