Home / 5,112,207.20-7,658,979.60-3,115,330.40

Finding the Fourth Proportional to 5,112,207.20, 7,658,979.60 and 3,115,330.40

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Solution

The fourth proportional to 5,112,207.20, 7,658,979.60 and 3,115,330.40 is: 4,667,309.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,112,207.20 : 7,658,979.60 = 3,115,330.40 : x
  2. Step 2: Convert to fraction form
    5,112,207.20/7,658,979.60 = 3,115,330.40/x
  3. Step 3: Cross multiply
    5,112,207.20x = 7,658,979.60 × 3,115,330.40
  4. Step 4: Simplify right side
    5,112,207.20x = 23,860,251,980,859.84
  5. Step 5: Solve for x
    x = 23,860,251,980,859.84/5,112,207.20
  6. Step 6: Final answer
    x = 4,667,309.26

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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.