Home / 90,722,883.60-136,102,040.10-36,126,178.20

Finding the Fourth Proportional to 90,722,883.60, 136,102,040.10 and 36,126,178.20

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Solution

The fourth proportional to 90,722,883.60, 136,102,040.10 and 36,126,178.20 is: 54,196,321.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,722,883.60 : 136,102,040.10 = 36,126,178.20 : x
  2. Step 2: Convert to fraction form
    90,722,883.60/136,102,040.10 = 36,126,178.20/x
  3. Step 3: Cross multiply
    90,722,883.60x = 136,102,040.10 × 36,126,178.20
  4. Step 4: Simplify right side
    90,722,883.60x = 4,916,846,554,036,146
  5. Step 5: Solve for x
    x = 4,916,846,554,036,146/90,722,883.60
  6. Step 6: Final answer
    x = 54,196,321.36

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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.