Home / 15,743,812.32-21,726,500.40-9,129,682.80

Finding the Fourth Proportional to 15,743,812.32, 21,726,500.40 and 9,129,682.80

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Solution

The fourth proportional to 15,743,812.32, 21,726,500.40 and 9,129,682.80 is: 12,598,985.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,743,812.32 : 21,726,500.40 = 9,129,682.80 : x
  2. Step 2: Convert to fraction form
    15,743,812.32/21,726,500.40 = 9,129,682.80/x
  3. Step 3: Cross multiply
    15,743,812.32x = 21,726,500.40 × 9,129,682.80
  4. Step 4: Simplify right side
    15,743,812.32x = 198,356,057,006,073.12
  5. Step 5: Solve for x
    x = 198,356,057,006,073.12/15,743,812.32
  6. Step 6: Final answer
    x = 12,598,985.11

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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.