Home / 66,419,977.80-99,555,317.10-34,059,376.20

Finding the Fourth Proportional to 66,419,977.80, 99,555,317.10 and 34,059,376.20

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Solution

The fourth proportional to 66,419,977.80, 99,555,317.10 and 34,059,376.20 is: 51,050,784.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,419,977.80 : 99,555,317.10 = 34,059,376.20 : x
  2. Step 2: Convert to fraction form
    66,419,977.80/99,555,317.10 = 34,059,376.20/x
  3. Step 3: Cross multiply
    66,419,977.80x = 99,555,317.10 × 34,059,376.20
  4. Step 4: Simplify right side
    66,419,977.80x = 3,390,791,997,819,193
  5. Step 5: Solve for x
    x = 3,390,791,997,819,193/66,419,977.80
  6. Step 6: Final answer
    x = 51,050,784.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.