Home / 71,876,211.20-107,814,316.80-69,986,643.20

Finding the Fourth Proportional to 71,876,211.20, 107,814,316.80 and 69,986,643.20

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Solution

The fourth proportional to 71,876,211.20, 107,814,316.80 and 69,986,643.20 is: 104,979,964.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,876,211.20 : 107,814,316.80 = 69,986,643.20 : x
  2. Step 2: Convert to fraction form
    71,876,211.20/107,814,316.80 = 69,986,643.20/x
  3. Step 3: Cross multiply
    71,876,211.20x = 107,814,316.80 × 69,986,643.20
  4. Step 4: Simplify right side
    71,876,211.20x = 7,545,562,121,733,366
  5. Step 5: Solve for x
    x = 7,545,562,121,733,366/71,876,211.20
  6. Step 6: Final answer
    x = 104,979,964.80

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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.