Home / 80,876,665.80-121,314,998.70-26,289,145.80

Finding the Fourth Proportional to 80,876,665.80, 121,314,998.70 and 26,289,145.80

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Solution

The fourth proportional to 80,876,665.80, 121,314,998.70 and 26,289,145.80 is: 39,433,718.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,876,665.80 : 121,314,998.70 = 26,289,145.80 : x
  2. Step 2: Convert to fraction form
    80,876,665.80/121,314,998.70 = 26,289,145.80/x
  3. Step 3: Cross multiply
    80,876,665.80x = 121,314,998.70 × 26,289,145.80
  4. Step 4: Simplify right side
    80,876,665.80x = 3,189,267,688,551,110.50
  5. Step 5: Solve for x
    x = 3,189,267,688,551,110.50/80,876,665.80
  6. Step 6: Final answer
    x = 39,433,718.70

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Similar ratio
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1.5x scale

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.