Home / 18,812,605.02-28,215,884.97-5,162,562.78

Finding the Fourth Proportional to 18,812,605.02, 28,215,884.97 and 5,162,562.78

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Solution

The fourth proportional to 18,812,605.02, 28,215,884.97 and 5,162,562.78 is: 7,743,014.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,812,605.02 : 28,215,884.97 = 5,162,562.78 : x
  2. Step 2: Convert to fraction form
    18,812,605.02/28,215,884.97 = 5,162,562.78/x
  3. Step 3: Cross multiply
    18,812,605.02x = 28,215,884.97 × 5,162,562.78
  4. Step 4: Simplify right side
    18,812,605.02x = 145,666,277,550,883.41
  5. Step 5: Solve for x
    x = 145,666,277,550,883.41/18,812,605.02
  6. Step 6: Final answer
    x = 7,743,014.72

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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.