Home / 3,286,161.80-4,920,948.30-2,158,123.40

Finding the Fourth Proportional to 3,286,161.80, 4,920,948.30 and 2,158,123.40

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Solution

The fourth proportional to 3,286,161.80, 4,920,948.30 and 2,158,123.40 is: 3,231,737.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,286,161.80 : 4,920,948.30 = 2,158,123.40 : x
  2. Step 2: Convert to fraction form
    3,286,161.80/4,920,948.30 = 2,158,123.40/x
  3. Step 3: Cross multiply
    3,286,161.80x = 4,920,948.30 × 2,158,123.40
  4. Step 4: Simplify right side
    3,286,161.80x = 10,620,013,676,420.22
  5. Step 5: Solve for x
    x = 10,620,013,676,420.22/3,286,161.80
  6. Step 6: Final answer
    x = 3,231,737.91

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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.