Home / 28,635,638.72-39,517,187.28-15,758,582.72

Finding the Fourth Proportional to 28,635,638.72, 39,517,187.28 and 15,758,582.72

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Solution

The fourth proportional to 28,635,638.72, 39,517,187.28 and 15,758,582.72 is: 21,746,847.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,635,638.72 : 39,517,187.28 = 15,758,582.72 : x
  2. Step 2: Convert to fraction form
    28,635,638.72/39,517,187.28 = 15,758,582.72/x
  3. Step 3: Cross multiply
    28,635,638.72x = 39,517,187.28 × 15,758,582.72
  4. Step 4: Simplify right side
    28,635,638.72x = 622,734,864,613,611.88
  5. Step 5: Solve for x
    x = 622,734,864,613,611.88/28,635,638.72
  6. Step 6: Final answer
    x = 21,746,847.37

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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.