Home / 15,420,127.47-21,279,776.05-8,544,609.53

Finding the Fourth Proportional to 15,420,127.47, 21,279,776.05 and 8,544,609.53

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Solution

The fourth proportional to 15,420,127.47, 21,279,776.05 and 8,544,609.53 is: 11,791,561.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,420,127.47 : 21,279,776.05 = 8,544,609.53 : x
  2. Step 2: Convert to fraction form
    15,420,127.47/21,279,776.05 = 8,544,609.53/x
  3. Step 3: Cross multiply
    15,420,127.47x = 21,279,776.05 × 8,544,609.53
  4. Step 4: Simplify right side
    15,420,127.47x = 181,827,377,233,095.75
  5. Step 5: Solve for x
    x = 181,827,377,233,095.75/15,420,127.47
  6. Step 6: Final answer
    x = 11,791,561.23

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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.