Home / 72,758,481.80-109,137,722.70-62,979,967.40

Finding the Fourth Proportional to 72,758,481.80, 109,137,722.70 and 62,979,967.40

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Solution

The fourth proportional to 72,758,481.80, 109,137,722.70 and 62,979,967.40 is: 94,469,951.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,758,481.80 : 109,137,722.70 = 62,979,967.40 : x
  2. Step 2: Convert to fraction form
    72,758,481.80/109,137,722.70 = 62,979,967.40/x
  3. Step 3: Cross multiply
    72,758,481.80x = 109,137,722.70 × 62,979,967.40
  4. Step 4: Simplify right side
    72,758,481.80x = 6,873,490,217,756,240
  5. Step 5: Solve for x
    x = 6,873,490,217,756,240/72,758,481.80
  6. Step 6: Final answer
    x = 94,469,951.10

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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.