Home / 57,121,078.47-85,680,621.18-13,990,655.52

Finding the Fourth Proportional to 57,121,078.47, 85,680,621.18 and 13,990,655.52

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Solution

The fourth proportional to 57,121,078.47, 85,680,621.18 and 13,990,655.52 is: 20,985,739.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,121,078.47 : 85,680,621.18 = 13,990,655.52 : x
  2. Step 2: Convert to fraction form
    57,121,078.47/85,680,621.18 = 13,990,655.52/x
  3. Step 3: Cross multiply
    57,121,078.47x = 85,680,621.18 × 13,990,655.52
  4. Step 4: Simplify right side
    57,121,078.47x = 1,198,728,055,668,996
  5. Step 5: Solve for x
    x = 1,198,728,055,668,996/57,121,078.47
  6. Step 6: Final answer
    x = 20,985,739.20

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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.