Home / 78,741,738.20-118,112,607.30-44,162,643.80

Finding the Fourth Proportional to 78,741,738.20, 118,112,607.30 and 44,162,643.80

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Solution

The fourth proportional to 78,741,738.20, 118,112,607.30 and 44,162,643.80 is: 66,243,965.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,741,738.20 : 118,112,607.30 = 44,162,643.80 : x
  2. Step 2: Convert to fraction form
    78,741,738.20/118,112,607.30 = 44,162,643.80/x
  3. Step 3: Cross multiply
    78,741,738.20x = 118,112,607.30 × 44,162,643.80
  4. Step 4: Simplify right side
    78,741,738.20x = 5,216,165,004,479,179
  5. Step 5: Solve for x
    x = 5,216,165,004,479,179/78,741,738.20
  6. Step 6: Final answer
    x = 66,243,965.70

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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.