Home / 155,052,532.62-213,977,059.29-85,442,397.57

Finding the Fourth Proportional to 155,052,532.62, 213,977,059.29 and 85,442,397.57

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Solution

The fourth proportional to 155,052,532.62, 213,977,059.29 and 85,442,397.57 is: 117,913,023.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,052,532.62 : 213,977,059.29 = 85,442,397.57 : x
  2. Step 2: Convert to fraction form
    155,052,532.62/213,977,059.29 = 85,442,397.57/x
  3. Step 3: Cross multiply
    155,052,532.62x = 213,977,059.29 × 85,442,397.57
  4. Step 4: Simplify right side
    155,052,532.62x = 18,282,712,970,715,640
  5. Step 5: Solve for x
    x = 18,282,712,970,715,640/155,052,532.62
  6. Step 6: Final answer
    x = 117,913,023.81

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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.