Home / 7,122,267.35-9,828,272.41-3,982,789.90

Finding the Fourth Proportional to 7,122,267.35, 9,828,272.41 and 3,982,789.90

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Solution

The fourth proportional to 7,122,267.35, 9,828,272.41 and 3,982,789.90 is: 5,495,994.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,122,267.35 : 9,828,272.41 = 3,982,789.90 : x
  2. Step 2: Convert to fraction form
    7,122,267.35/9,828,272.41 = 3,982,789.90/x
  3. Step 3: Cross multiply
    7,122,267.35x = 9,828,272.41 × 3,982,789.90
  4. Step 4: Simplify right side
    7,122,267.35x = 39,143,944,041,641.59
  5. Step 5: Solve for x
    x = 39,143,944,041,641.59/7,122,267.35
  6. Step 6: Final answer
    x = 5,495,994.76

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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.