Home / 12,668,407.38-17,471,114.24-9,878,222.25

Finding the Fourth Proportional to 12,668,407.38, 17,471,114.24 and 9,878,222.25

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Solution

The fourth proportional to 12,668,407.38, 17,471,114.24 and 9,878,222.25 is: 13,623,144.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,668,407.38 : 17,471,114.24 = 9,878,222.25 : x
  2. Step 2: Convert to fraction form
    12,668,407.38/17,471,114.24 = 9,878,222.25/x
  3. Step 3: Cross multiply
    12,668,407.38x = 17,471,114.24 × 9,878,222.25
  4. Step 4: Simplify right side
    12,668,407.38x = 172,583,549,368,468.72
  5. Step 5: Solve for x
    x = 172,583,549,368,468.72/12,668,407.38
  6. Step 6: Final answer
    x = 13,623,144.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.