Home / 28,188,727.62-38,905,899.65-18,382,146.54

Finding the Fourth Proportional to 28,188,727.62, 38,905,899.65 and 18,382,146.54

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Solution

The fourth proportional to 28,188,727.62, 38,905,899.65 and 18,382,146.54 is: 25,370,919.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,188,727.62 : 38,905,899.65 = 18,382,146.54 : x
  2. Step 2: Convert to fraction form
    28,188,727.62/38,905,899.65 = 18,382,146.54/x
  3. Step 3: Cross multiply
    28,188,727.62x = 38,905,899.65 × 18,382,146.54
  4. Step 4: Simplify right side
    28,188,727.62x = 715,173,948,636,834.62
  5. Step 5: Solve for x
    x = 715,173,948,636,834.62/28,188,727.62
  6. Step 6: Final answer
    x = 25,370,919.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.