Home / 15,376,449.87-21,219,538.83-8,407,577.61

Finding the Fourth Proportional to 15,376,449.87, 21,219,538.83 and 8,407,577.61

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Solution

The fourth proportional to 15,376,449.87, 21,219,538.83 and 8,407,577.61 is: 11,602,477.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,376,449.87 : 21,219,538.83 = 8,407,577.61 : x
  2. Step 2: Convert to fraction form
    15,376,449.87/21,219,538.83 = 8,407,577.61/x
  3. Step 3: Cross multiply
    15,376,449.87x = 21,219,538.83 × 8,407,577.61
  4. Step 4: Simplify right side
    15,376,449.87x = 178,404,919,561,633.56
  5. Step 5: Solve for x
    x = 178,404,919,561,633.56/15,376,449.87
  6. Step 6: Final answer
    x = 11,602,477.88

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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.