Home / 90,414,540-135,621,946.08-41,865,939.36

Finding the Fourth Proportional to 90,414,540, 135,621,946.08 and 41,865,939.36

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Solution

The fourth proportional to 90,414,540, 135,621,946.08 and 41,865,939.36 is: 62,798,972.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,414,540 : 135,621,946.08 = 41,865,939.36 : x
  2. Step 2: Convert to fraction form
    90,414,540/135,621,946.08 = 41,865,939.36/x
  3. Step 3: Cross multiply
    90,414,540x = 135,621,946.08 × 41,865,939.36
  4. Step 4: Simplify right side
    90,414,540x = 5,677,940,170,470,470
  5. Step 5: Solve for x
    x = 5,677,940,170,470,470/90,414,540
  6. Step 6: Final answer
    x = 62,798,972.05

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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.