Home / 155,847,517.02-215,069,825.43-86,235,831.90

Finding the Fourth Proportional to 155,847,517.02, 215,069,825.43 and 86,235,831.90

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Solution

The fourth proportional to 155,847,517.02, 215,069,825.43 and 86,235,831.90 is: 119,005,587.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,847,517.02 : 215,069,825.43 = 86,235,831.90 : x
  2. Step 2: Convert to fraction form
    155,847,517.02/215,069,825.43 = 86,235,831.90/x
  3. Step 3: Cross multiply
    155,847,517.02x = 215,069,825.43 × 86,235,831.90
  4. Step 4: Simplify right side
    155,847,517.02x = 18,546,725,312,543,828
  5. Step 5: Solve for x
    x = 18,546,725,312,543,828/155,847,517.02
  6. Step 6: Final answer
    x = 119,005,587.43

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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.