Home / 55,146,608.80-82,719,913.20-30,960,138.40

Finding the Fourth Proportional to 55,146,608.80, 82,719,913.20 and 30,960,138.40

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Solution

The fourth proportional to 55,146,608.80, 82,719,913.20 and 30,960,138.40 is: 46,440,207.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,146,608.80 : 82,719,913.20 = 30,960,138.40 : x
  2. Step 2: Convert to fraction form
    55,146,608.80/82,719,913.20 = 30,960,138.40/x
  3. Step 3: Cross multiply
    55,146,608.80x = 82,719,913.20 × 30,960,138.40
  4. Step 4: Simplify right side
    55,146,608.80x = 2,561,019,961,107,987
  5. Step 5: Solve for x
    x = 2,561,019,961,107,987/55,146,608.80
  6. Step 6: Final answer
    x = 46,440,207.60

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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.