Home / 82,741,759.20-124,112,638.80-69,987,175.20

Finding the Fourth Proportional to 82,741,759.20, 124,112,638.80 and 69,987,175.20

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Solution

The fourth proportional to 82,741,759.20, 124,112,638.80 and 69,987,175.20 is: 104,980,762.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,741,759.20 : 124,112,638.80 = 69,987,175.20 : x
  2. Step 2: Convert to fraction form
    82,741,759.20/124,112,638.80 = 69,987,175.20/x
  3. Step 3: Cross multiply
    82,741,759.20x = 124,112,638.80 × 69,987,175.20
  4. Step 4: Simplify right side
    82,741,759.20x = 8,686,292,996,229,918
  5. Step 5: Solve for x
    x = 8,686,292,996,229,918/82,741,759.20
  6. Step 6: Final answer
    x = 104,980,762.80

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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.