Home / 71,620,562-98,609,758.62-65,074,608.56

Finding the Fourth Proportional to 71,620,562, 98,609,758.62 and 65,074,608.56

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Solution

The fourth proportional to 71,620,562, 98,609,758.62 and 65,074,608.56 is: 89,597,055.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,620,562 : 98,609,758.62 = 65,074,608.56 : x
  2. Step 2: Convert to fraction form
    71,620,562/98,609,758.62 = 65,074,608.56/x
  3. Step 3: Cross multiply
    71,620,562x = 98,609,758.62 × 65,074,608.56
  4. Step 4: Simplify right side
    71,620,562x = 6,416,991,442,392,586
  5. Step 5: Solve for x
    x = 6,416,991,442,392,586/71,620,562
  6. Step 6: Final answer
    x = 89,597,055.14

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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.