Home / 15,905,343.69-21,949,665-8,841,600.15

Finding the Fourth Proportional to 15,905,343.69, 21,949,665 and 8,841,600.15

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Solution

The fourth proportional to 15,905,343.69, 21,949,665 and 8,841,600.15 is: 12,201,569.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,905,343.69 : 21,949,665 = 8,841,600.15 : x
  2. Step 2: Convert to fraction form
    15,905,343.69/21,949,665 = 8,841,600.15/x
  3. Step 3: Cross multiply
    15,905,343.69x = 21,949,665 × 8,841,600.15
  4. Step 4: Simplify right side
    15,905,343.69x = 194,070,161,356,449.75
  5. Step 5: Solve for x
    x = 194,070,161,356,449.75/15,905,343.69
  6. Step 6: Final answer
    x = 12,201,569.81

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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.