Home / 80,533,623.09-120,799,662.78-47,720,572.06

Finding the Fourth Proportional to 80,533,623.09, 120,799,662.78 and 47,720,572.06

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Solution

The fourth proportional to 80,533,623.09, 120,799,662.78 and 47,720,572.06 is: 71,580,400.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,533,623.09 : 120,799,662.78 = 47,720,572.06 : x
  2. Step 2: Convert to fraction form
    80,533,623.09/120,799,662.78 = 47,720,572.06/x
  3. Step 3: Cross multiply
    80,533,623.09x = 120,799,662.78 × 47,720,572.06
  4. Step 4: Simplify right side
    80,533,623.09x = 5,764,629,012,367,963
  5. Step 5: Solve for x
    x = 5,764,629,012,367,963/80,533,623.09
  6. Step 6: Final answer
    x = 71,580,400.72

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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.