Home / 126,024,729.60-188,659,180.80-74,880,422.40

Finding the Fourth Proportional to 126,024,729.60, 188,659,180.80 and 74,880,422.40

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Solution

The fourth proportional to 126,024,729.60, 188,659,180.80 and 74,880,422.40 is: 112,096,087.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,024,729.60 : 188,659,180.80 = 74,880,422.40 : x
  2. Step 2: Convert to fraction form
    126,024,729.60/188,659,180.80 = 74,880,422.40/x
  3. Step 3: Cross multiply
    126,024,729.60x = 188,659,180.80 × 74,880,422.40
  4. Step 4: Simplify right side
    126,024,729.60x = 14,126,879,147,941,972
  5. Step 5: Solve for x
    x = 14,126,879,147,941,972/126,024,729.60
  6. Step 6: Final answer
    x = 112,096,087.75

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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.