Home / 6,739,840.80-10,109,761.20-1,947,686.40

Finding the Fourth Proportional to 6,739,840.80, 10,109,761.20 and 1,947,686.40

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Solution

The fourth proportional to 6,739,840.80, 10,109,761.20 and 1,947,686.40 is: 2,921,529.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,739,840.80 : 10,109,761.20 = 1,947,686.40 : x
  2. Step 2: Convert to fraction form
    6,739,840.80/10,109,761.20 = 1,947,686.40/x
  3. Step 3: Cross multiply
    6,739,840.80x = 10,109,761.20 × 1,947,686.40
  4. Step 4: Simplify right side
    6,739,840.80x = 19,690,644,396,487.68
  5. Step 5: Solve for x
    x = 19,690,644,396,487.68/6,739,840.80
  6. Step 6: Final answer
    x = 2,921,529.60

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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.