Home / 18,988,661.52-28,435,753.08-13,282,166.16

Finding the Fourth Proportional to 18,988,661.52, 28,435,753.08 and 13,282,166.16

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Solution

The fourth proportional to 18,988,661.52, 28,435,753.08 and 13,282,166.16 is: 19,890,206.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,988,661.52 : 28,435,753.08 = 13,282,166.16 : x
  2. Step 2: Convert to fraction form
    18,988,661.52/28,435,753.08 = 13,282,166.16/x
  3. Step 3: Cross multiply
    18,988,661.52x = 28,435,753.08 × 13,282,166.16
  4. Step 4: Simplify right side
    18,988,661.52x = 377,688,397,293,291.75
  5. Step 5: Solve for x
    x = 377,688,397,293,291.75/18,988,661.52
  6. Step 6: Final answer
    x = 19,890,206.42

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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.