Home / 5,157,707.40-7,117,324.20-2,865,789.72

Finding the Fourth Proportional to 5,157,707.40, 7,117,324.20 and 2,865,789.72

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Solution

The fourth proportional to 5,157,707.40, 7,117,324.20 and 2,865,789.72 is: 3,954,616.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,157,707.40 : 7,117,324.20 = 2,865,789.72 : x
  2. Step 2: Convert to fraction form
    5,157,707.40/7,117,324.20 = 2,865,789.72/x
  3. Step 3: Cross multiply
    5,157,707.40x = 7,117,324.20 × 2,865,789.72
  4. Step 4: Simplify right side
    5,157,707.40x = 20,396,754,526,267.23
  5. Step 5: Solve for x
    x = 20,396,754,526,267.23/5,157,707.40
  6. Step 6: Final answer
    x = 3,954,616.45

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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.