Home / 80,852,987.20-121,279,480.80-44,447,310.40

Finding the Fourth Proportional to 80,852,987.20, 121,279,480.80 and 44,447,310.40

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Solution

The fourth proportional to 80,852,987.20, 121,279,480.80 and 44,447,310.40 is: 66,670,965.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,852,987.20 : 121,279,480.80 = 44,447,310.40 : x
  2. Step 2: Convert to fraction form
    80,852,987.20/121,279,480.80 = 44,447,310.40/x
  3. Step 3: Cross multiply
    80,852,987.20x = 121,279,480.80 × 44,447,310.40
  4. Step 4: Simplify right side
    80,852,987.20x = 5,390,546,728,268,440
  5. Step 5: Solve for x
    x = 5,390,546,728,268,440/80,852,987.20
  6. Step 6: Final answer
    x = 66,670,965.60

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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.