Home / 90,722,871.60-136,102,022.10-36,126,166.20

Finding the Fourth Proportional to 90,722,871.60, 136,102,022.10 and 36,126,166.20

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Solution

The fourth proportional to 90,722,871.60, 136,102,022.10 and 36,126,166.20 is: 54,196,303.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,722,871.60 : 136,102,022.10 = 36,126,166.20 : x
  2. Step 2: Convert to fraction form
    90,722,871.60/136,102,022.10 = 36,126,166.20/x
  3. Step 3: Cross multiply
    90,722,871.60x = 136,102,022.10 × 36,126,166.20
  4. Step 4: Simplify right side
    90,722,871.60x = 4,916,844,270,540,673
  5. Step 5: Solve for x
    x = 4,916,844,270,540,673/90,722,871.60
  6. Step 6: Final answer
    x = 54,196,303.36

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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.