Home / 66,456,098.80-99,684,148.20-39,134,345.20

Finding the Fourth Proportional to 66,456,098.80, 99,684,148.20 and 39,134,345.20

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Solution

The fourth proportional to 66,456,098.80, 99,684,148.20 and 39,134,345.20 is: 58,701,517.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,456,098.80 : 99,684,148.20 = 39,134,345.20 : x
  2. Step 2: Convert to fraction form
    66,456,098.80/99,684,148.20 = 39,134,345.20/x
  3. Step 3: Cross multiply
    66,456,098.80x = 99,684,148.20 × 39,134,345.20
  4. Step 4: Simplify right side
    66,456,098.80x = 3,901,073,866,626,759
  5. Step 5: Solve for x
    x = 3,901,073,866,626,759/66,456,098.80
  6. Step 6: Final answer
    x = 58,701,517.80

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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.