Home / 18,817,406.50-28,227,618.59-7,151,366.78

Finding the Fourth Proportional to 18,817,406.50, 28,227,618.59 and 7,151,366.78

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Solution

The fourth proportional to 18,817,406.50, 28,227,618.59 and 7,151,366.78 is: 10,727,623.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,817,406.50 : 28,227,618.59 = 7,151,366.78 : x
  2. Step 2: Convert to fraction form
    18,817,406.50/28,227,618.59 = 7,151,366.78/x
  3. Step 3: Cross multiply
    18,817,406.50x = 28,227,618.59 × 7,151,366.78
  4. Step 4: Simplify right side
    18,817,406.50x = 201,866,053,863,036.44
  5. Step 5: Solve for x
    x = 201,866,053,863,036.44/18,817,406.50
  6. Step 6: Final answer
    x = 10,727,623.59

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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.