Home / 7,982,920.90-11,013,304.89-4,921,820.74

Finding the Fourth Proportional to 7,982,920.90, 11,013,304.89 and 4,921,820.74

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Solution

The fourth proportional to 7,982,920.90, 11,013,304.89 and 4,921,820.74 is: 6,790,185.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,982,920.90 : 11,013,304.89 = 4,921,820.74 : x
  2. Step 2: Convert to fraction form
    7,982,920.90/11,013,304.89 = 4,921,820.74/x
  3. Step 3: Cross multiply
    7,982,920.90x = 11,013,304.89 × 4,921,820.74
  4. Step 4: Simplify right side
    7,982,920.90x = 54,205,512,423,545.42
  5. Step 5: Solve for x
    x = 54,205,512,423,545.42/7,982,920.90
  6. Step 6: Final answer
    x = 6,790,185.33

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1.5x scale

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.