Home / 18,684,988.72-25,785,248.80-10,424,559.52

Finding the Fourth Proportional to 18,684,988.72, 25,785,248.80 and 10,424,559.52

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Solution

The fourth proportional to 18,684,988.72, 25,785,248.80 and 10,424,559.52 is: 14,385,872.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,684,988.72 : 25,785,248.80 = 10,424,559.52 : x
  2. Step 2: Convert to fraction form
    18,684,988.72/25,785,248.80 = 10,424,559.52/x
  3. Step 3: Cross multiply
    18,684,988.72x = 25,785,248.80 × 10,424,559.52
  4. Step 4: Simplify right side
    18,684,988.72x = 268,799,860,853,608.56
  5. Step 5: Solve for x
    x = 268,799,860,853,608.56/18,684,988.72
  6. Step 6: Final answer
    x = 14,385,872.26

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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.