Home / 5,165,939.89-7,128,818.16-2,842,615.15

Finding the Fourth Proportional to 5,165,939.89, 7,128,818.16 and 2,842,615.15

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Solution

The fourth proportional to 5,165,939.89, 7,128,818.16 and 2,842,615.15 is: 3,922,710.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,165,939.89 : 7,128,818.16 = 2,842,615.15 : x
  2. Step 2: Convert to fraction form
    5,165,939.89/7,128,818.16 = 2,842,615.15/x
  3. Step 3: Cross multiply
    5,165,939.89x = 7,128,818.16 × 2,842,615.15
  4. Step 4: Simplify right side
    5,165,939.89x = 20,264,486,503,211.12
  5. Step 5: Solve for x
    x = 20,264,486,503,211.12/5,165,939.89
  6. Step 6: Final answer
    x = 3,922,710.47

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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.