Home / 81,675,023.60-122,512,535.40-74,116,751.60

Finding the Fourth Proportional to 81,675,023.60, 122,512,535.40 and 74,116,751.60

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Solution

The fourth proportional to 81,675,023.60, 122,512,535.40 and 74,116,751.60 is: 111,175,127.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,675,023.60 : 122,512,535.40 = 74,116,751.60 : x
  2. Step 2: Convert to fraction form
    81,675,023.60/122,512,535.40 = 74,116,751.60/x
  3. Step 3: Cross multiply
    81,675,023.60x = 122,512,535.40 × 74,116,751.60
  4. Step 4: Simplify right side
    81,675,023.60x = 9,080,231,154,128,006
  5. Step 5: Solve for x
    x = 9,080,231,154,128,006/81,675,023.60
  6. Step 6: Final answer
    x = 111,175,127.40

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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.