Home / 80,302,991.80-120,457,086.56-38,228,545.40

Finding the Fourth Proportional to 80,302,991.80, 120,457,086.56 and 38,228,545.40

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Solution

The fourth proportional to 80,302,991.80, 120,457,086.56 and 38,228,545.40 is: 57,344,055.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,302,991.80 : 120,457,086.56 = 38,228,545.40 : x
  2. Step 2: Convert to fraction form
    80,302,991.80/120,457,086.56 = 38,228,545.40/x
  3. Step 3: Cross multiply
    80,302,991.80x = 120,457,086.56 × 38,228,545.40
  4. Step 4: Simplify right side
    80,302,991.80x = 4,604,899,202,310,690
  5. Step 5: Solve for x
    x = 4,604,899,202,310,690/80,302,991.80
  6. Step 6: Final answer
    x = 57,344,055.30

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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.