Home / 28,870,255.46-39,840,951.66-15,818,008.88

Finding the Fourth Proportional to 28,870,255.46, 39,840,951.66 and 15,818,008.88

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Solution

The fourth proportional to 28,870,255.46, 39,840,951.66 and 15,818,008.88 is: 21,828,851.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,870,255.46 : 39,840,951.66 = 15,818,008.88 : x
  2. Step 2: Convert to fraction form
    28,870,255.46/39,840,951.66 = 15,818,008.88/x
  3. Step 3: Cross multiply
    28,870,255.46x = 39,840,951.66 × 15,818,008.88
  4. Step 4: Simplify right side
    28,870,255.46x = 630,204,527,145,530.75
  5. Step 5: Solve for x
    x = 630,204,527,145,530.75/28,870,255.46
  6. Step 6: Final answer
    x = 21,828,851.78

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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.