Home / 7,043,765.80-9,720,432.66-3,988,575.40

Finding the Fourth Proportional to 7,043,765.80, 9,720,432.66 and 3,988,575.40

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Solution

The fourth proportional to 7,043,765.80, 9,720,432.66 and 3,988,575.40 is: 5,504,254.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,043,765.80 : 9,720,432.66 = 3,988,575.40 : x
  2. Step 2: Convert to fraction form
    7,043,765.80/9,720,432.66 = 3,988,575.40/x
  3. Step 3: Cross multiply
    7,043,765.80x = 9,720,432.66 × 3,988,575.40
  4. Step 4: Simplify right side
    7,043,765.80x = 38,770,678,585,032.56
  5. Step 5: Solve for x
    x = 38,770,678,585,032.56/7,043,765.80
  6. Step 6: Final answer
    x = 5,504,254.36

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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.