Home / 84,216,005.40-126,324,008.10-74,331,202.80

Finding the Fourth Proportional to 84,216,005.40, 126,324,008.10 and 74,331,202.80

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Solution

The fourth proportional to 84,216,005.40, 126,324,008.10 and 74,331,202.80 is: 111,496,804.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,216,005.40 : 126,324,008.10 = 74,331,202.80 : x
  2. Step 2: Convert to fraction form
    84,216,005.40/126,324,008.10 = 74,331,202.80/x
  3. Step 3: Cross multiply
    84,216,005.40x = 126,324,008.10 × 74,331,202.80
  4. Step 4: Simplify right side
    84,216,005.40x = 9,389,815,464,589,942
  5. Step 5: Solve for x
    x = 9,389,815,464,589,942/84,216,005.40
  6. Step 6: Final answer
    x = 111,496,804.20

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1.5x scale

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.