Home / 18,982,689.15-28,484,399.67-8,051,178.43

Finding the Fourth Proportional to 18,982,689.15, 28,484,399.67 and 8,051,178.43

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Solution

The fourth proportional to 18,982,689.15, 28,484,399.67 and 8,051,178.43 is: 12,081,164.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,982,689.15 : 28,484,399.67 = 8,051,178.43 : x
  2. Step 2: Convert to fraction form
    18,982,689.15/28,484,399.67 = 8,051,178.43/x
  3. Step 3: Cross multiply
    18,982,689.15x = 28,484,399.67 × 8,051,178.43
  4. Step 4: Simplify right side
    18,982,689.15x = 229,332,984,265,304.59
  5. Step 5: Solve for x
    x = 229,332,984,265,304.59/18,982,689.15
  6. Step 6: Final answer
    x = 12,081,164.18

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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.