Home / 80,829,679.80-121,244,519.70-74,594,105.40

Finding the Fourth Proportional to 80,829,679.80, 121,244,519.70 and 74,594,105.40

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Solution

The fourth proportional to 80,829,679.80, 121,244,519.70 and 74,594,105.40 is: 111,891,158.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,829,679.80 : 121,244,519.70 = 74,594,105.40 : x
  2. Step 2: Convert to fraction form
    80,829,679.80/121,244,519.70 = 74,594,105.40/x
  3. Step 3: Cross multiply
    80,829,679.80x = 121,244,519.70 × 74,594,105.40
  4. Step 4: Simplify right side
    80,829,679.80x = 9,044,126,481,674,178
  5. Step 5: Solve for x
    x = 9,044,126,481,674,178/80,829,679.80
  6. Step 6: Final answer
    x = 111,891,158.10

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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.