Home / 81,074,173.60-121,631,996.40-57,186,301.60

Finding the Fourth Proportional to 81,074,173.60, 121,631,996.40 and 57,186,301.60

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Solution

The fourth proportional to 81,074,173.60, 121,631,996.40 and 57,186,301.60 is: 85,794,078.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,074,173.60 : 121,631,996.40 = 57,186,301.60 : x
  2. Step 2: Convert to fraction form
    81,074,173.60/121,631,996.40 = 57,186,301.60/x
  3. Step 3: Cross multiply
    81,074,173.60x = 121,631,996.40 × 57,186,301.60
  4. Step 4: Simplify right side
    81,074,173.60x = 6,955,684,030,340,515
  5. Step 5: Solve for x
    x = 6,955,684,030,340,515/81,074,173.60
  6. Step 6: Final answer
    x = 85,794,078.70

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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.