Home / 15,079,960.42-20,822,909.97-13,985,857.78

Finding the Fourth Proportional to 15,079,960.42, 20,822,909.97 and 13,985,857.78

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Solution

The fourth proportional to 15,079,960.42, 20,822,909.97 and 13,985,857.78 is: 19,312,136.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,079,960.42 : 20,822,909.97 = 13,985,857.78 : x
  2. Step 2: Convert to fraction form
    15,079,960.42/20,822,909.97 = 13,985,857.78/x
  3. Step 3: Cross multiply
    15,079,960.42x = 20,822,909.97 × 13,985,857.78
  4. Step 4: Simplify right side
    15,079,960.42x = 291,226,257,406,164.06
  5. Step 5: Solve for x
    x = 291,226,257,406,164.06/15,079,960.42
  6. Step 6: Final answer
    x = 19,312,136.72

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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.