Home / 5,220,701.80-7,204,200.10-2,897,712.52

Finding the Fourth Proportional to 5,220,701.80, 7,204,200.10 and 2,897,712.52

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Solution

The fourth proportional to 5,220,701.80, 7,204,200.10 and 2,897,712.52 is: 3,998,638.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220,701.80 : 7,204,200.10 = 2,897,712.52 : x
  2. Step 2: Convert to fraction form
    5,220,701.80/7,204,200.10 = 2,897,712.52/x
  3. Step 3: Cross multiply
    5,220,701.80x = 7,204,200.10 × 2,897,712.52
  4. Step 4: Simplify right side
    5,220,701.80x = 20,875,700,826,355.25
  5. Step 5: Solve for x
    x = 20,875,700,826,355.25/5,220,701.80
  6. Step 6: Final answer
    x = 3,998,638.81

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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.