Home / 155,052,560.76-213,977,098.02-85,442,425.68

Finding the Fourth Proportional to 155,052,560.76, 213,977,098.02 and 85,442,425.68

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Solution

The fourth proportional to 155,052,560.76, 213,977,098.02 and 85,442,425.68 is: 117,913,062.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,052,560.76 : 213,977,098.02 = 85,442,425.68 : x
  2. Step 2: Convert to fraction form
    155,052,560.76/213,977,098.02 = 85,442,425.68/x
  3. Step 3: Cross multiply
    155,052,560.76x = 213,977,098.02 × 85,442,425.68
  4. Step 4: Simplify right side
    155,052,560.76x = 18,282,722,294,795,928
  5. Step 5: Solve for x
    x = 18,282,722,294,795,928/155,052,560.76
  6. Step 6: Final answer
    x = 117,913,062.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.