Home / 80,312,501.95-120,471,608.07-25,717,993.57

Finding the Fourth Proportional to 80,312,501.95, 120,471,608.07 and 25,717,993.57

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Solution

The fourth proportional to 80,312,501.95, 120,471,608.07 and 25,717,993.57 is: 38,577,904.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,312,501.95 : 120,471,608.07 = 25,717,993.57 : x
  2. Step 2: Convert to fraction form
    80,312,501.95/120,471,608.07 = 25,717,993.57/x
  3. Step 3: Cross multiply
    80,312,501.95x = 120,471,608.07 × 25,717,993.57
  4. Step 4: Simplify right side
    80,312,501.95x = 3,098,288,041,711,820
  5. Step 5: Solve for x
    x = 3,098,288,041,711,820/80,312,501.95
  6. Step 6: Final answer
    x = 38,577,904.64

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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.