Home / 81,206,612.40-121,809,918.60-62,074,736.40

Finding the Fourth Proportional to 81,206,612.40, 121,809,918.60 and 62,074,736.40

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Solution

The fourth proportional to 81,206,612.40, 121,809,918.60 and 62,074,736.40 is: 93,112,104.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,206,612.40 : 121,809,918.60 = 62,074,736.40 : x
  2. Step 2: Convert to fraction form
    81,206,612.40/121,809,918.60 = 62,074,736.40/x
  3. Step 3: Cross multiply
    81,206,612.40x = 121,809,918.60 × 62,074,736.40
  4. Step 4: Simplify right side
    81,206,612.40x = 7,561,318,588,000,456
  5. Step 5: Solve for x
    x = 7,561,318,588,000,456/81,206,612.40
  6. Step 6: Final answer
    x = 93,112,104.60

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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.