Home / 57,121,076.72-85,680,618.56-13,990,653.77

Finding the Fourth Proportional to 57,121,076.72, 85,680,618.56 and 13,990,653.77

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Solution

The fourth proportional to 57,121,076.72, 85,680,618.56 and 13,990,653.77 is: 20,985,736.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,121,076.72 : 85,680,618.56 = 13,990,653.77 : x
  2. Step 2: Convert to fraction form
    57,121,076.72/85,680,618.56 = 13,990,653.77/x
  3. Step 3: Cross multiply
    57,121,076.72x = 85,680,618.56 × 13,990,653.77
  4. Step 4: Simplify right side
    57,121,076.72x = 1,198,727,868,574,039.75
  5. Step 5: Solve for x
    x = 1,198,727,868,574,039.75/57,121,076.72
  6. Step 6: Final answer
    x = 20,985,736.57

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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.