Home / 18,792,331.70-28,132,510.35-11,215,397.30

Finding the Fourth Proportional to 18,792,331.70, 28,132,510.35 and 11,215,397.30

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Solution

The fourth proportional to 18,792,331.70, 28,132,510.35 and 11,215,397.30 is: 16,789,682.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,792,331.70 : 28,132,510.35 = 11,215,397.30 : x
  2. Step 2: Convert to fraction form
    18,792,331.70/28,132,510.35 = 11,215,397.30/x
  3. Step 3: Cross multiply
    18,792,331.70x = 28,132,510.35 × 11,215,397.30
  4. Step 4: Simplify right side
    18,792,331.70x = 315,517,280,621,612.06
  5. Step 5: Solve for x
    x = 315,517,280,621,612.06/18,792,331.70
  6. Step 6: Final answer
    x = 16,789,682.39

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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.