Home / 80,734,200.30-121,101,300.45-66,385,293.30

Finding the Fourth Proportional to 80,734,200.30, 121,101,300.45 and 66,385,293.30

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Solution

The fourth proportional to 80,734,200.30, 121,101,300.45 and 66,385,293.30 is: 99,577,939.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,734,200.30 : 121,101,300.45 = 66,385,293.30 : x
  2. Step 2: Convert to fraction form
    80,734,200.30/121,101,300.45 = 66,385,293.30/x
  3. Step 3: Cross multiply
    80,734,200.30x = 121,101,300.45 × 66,385,293.30
  4. Step 4: Simplify right side
    80,734,200.30x = 8,039,345,349,384,672
  5. Step 5: Solve for x
    x = 8,039,345,349,384,672/80,734,200.30
  6. Step 6: Final answer
    x = 99,577,939.95

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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.