Home / 90,658,621.44-125,073,378-55,790,777.52

Finding the Fourth Proportional to 90,658,621.44, 125,073,378 and 55,790,777.52

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Solution

The fourth proportional to 90,658,621.44, 125,073,378 and 55,790,777.52 is: 76,969,414.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,658,621.44 : 125,073,378 = 55,790,777.52 : x
  2. Step 2: Convert to fraction form
    90,658,621.44/125,073,378 = 55,790,777.52/x
  3. Step 3: Cross multiply
    90,658,621.44x = 125,073,378 × 55,790,777.52
  4. Step 4: Simplify right side
    90,658,621.44x = 6,977,941,005,672,863
  5. Step 5: Solve for x
    x = 6,977,941,005,672,863/90,658,621.44
  6. Step 6: Final answer
    x = 76,969,414.43

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1.5x scale

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.