Home / 18,675,834.48-28,016,648.16-7,893,180.72

Finding the Fourth Proportional to 18,675,834.48, 28,016,648.16 and 7,893,180.72

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Solution

The fourth proportional to 18,675,834.48, 28,016,648.16 and 7,893,180.72 is: 11,840,995.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,675,834.48 : 28,016,648.16 = 7,893,180.72 : x
  2. Step 2: Convert to fraction form
    18,675,834.48/28,016,648.16 = 7,893,180.72/x
  3. Step 3: Cross multiply
    18,675,834.48x = 28,016,648.16 × 7,893,180.72
  4. Step 4: Simplify right side
    18,675,834.48x = 221,140,467,095,535.47
  5. Step 5: Solve for x
    x = 221,140,467,095,535.47/18,675,834.48
  6. Step 6: Final answer
    x = 11,840,995.24

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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.