Home / 80,407,289.75-120,306,570.50-47,635,447.77

Finding the Fourth Proportional to 80,407,289.75, 120,306,570.50 and 47,635,447.77

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Solution

The fourth proportional to 80,407,289.75, 120,306,570.50 and 47,635,447.77 is: 71,272,858.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,407,289.75 : 120,306,570.50 = 47,635,447.77 : x
  2. Step 2: Convert to fraction form
    80,407,289.75/120,306,570.50 = 47,635,447.77/x
  3. Step 3: Cross multiply
    80,407,289.75x = 120,306,570.50 × 47,635,447.77
  4. Step 4: Simplify right side
    80,407,289.75x = 5,730,857,355,559,662
  5. Step 5: Solve for x
    x = 5,730,857,355,559,662/80,407,289.75
  6. Step 6: Final answer
    x = 71,272,858.14

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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.