Home / 78,398,853.20-117,598,279.80-44,386,629.20

Finding the Fourth Proportional to 78,398,853.20, 117,598,279.80 and 44,386,629.20

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Solution

The fourth proportional to 78,398,853.20, 117,598,279.80 and 44,386,629.20 is: 66,579,943.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,398,853.20 : 117,598,279.80 = 44,386,629.20 : x
  2. Step 2: Convert to fraction form
    78,398,853.20/117,598,279.80 = 44,386,629.20/x
  3. Step 3: Cross multiply
    78,398,853.20x = 117,598,279.80 × 44,386,629.20
  4. Step 4: Simplify right side
    78,398,853.20x = 5,219,791,240,040,450
  5. Step 5: Solve for x
    x = 5,219,791,240,040,450/78,398,853.20
  6. Step 6: Final answer
    x = 66,579,943.80

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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.