Home / 5,371,205.80-8,040,219.90-3,120,658.60

Finding the Fourth Proportional to 5,371,205.80, 8,040,219.90 and 3,120,658.60

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Solution

The fourth proportional to 5,371,205.80, 8,040,219.90 and 3,120,658.60 is: 4,671,349.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,371,205.80 : 8,040,219.90 = 3,120,658.60 : x
  2. Step 2: Convert to fraction form
    5,371,205.80/8,040,219.90 = 3,120,658.60/x
  3. Step 3: Cross multiply
    5,371,205.80x = 8,040,219.90 × 3,120,658.60
  4. Step 4: Simplify right side
    5,371,205.80x = 25,090,781,376,826.14
  5. Step 5: Solve for x
    x = 25,090,781,376,826.14/5,371,205.80
  6. Step 6: Final answer
    x = 4,671,349.84

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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.