Home / 84,251,012.40-126,388,328.40-33,121,139.40

Finding the Fourth Proportional to 84,251,012.40, 126,388,328.40 and 33,121,139.40

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Solution

The fourth proportional to 84,251,012.40, 126,388,328.40 and 33,121,139.40 is: 49,686,351.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,251,012.40 : 126,388,328.40 = 33,121,139.40 : x
  2. Step 2: Convert to fraction form
    84,251,012.40/126,388,328.40 = 33,121,139.40/x
  3. Step 3: Cross multiply
    84,251,012.40x = 126,388,328.40 × 33,121,139.40
  4. Step 4: Simplify right side
    84,251,012.40x = 4,186,125,443,469,379
  5. Step 5: Solve for x
    x = 4,186,125,443,469,379/84,251,012.40
  6. Step 6: Final answer
    x = 49,686,351.82

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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.