Home / 5,218,002.90-7,827,004.35-1,431,479.70

Finding the Fourth Proportional to 5,218,002.90, 7,827,004.35 and 1,431,479.70

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Solution

The fourth proportional to 5,218,002.90, 7,827,004.35 and 1,431,479.70 is: 2,147,219.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,218,002.90 : 7,827,004.35 = 1,431,479.70 : x
  2. Step 2: Convert to fraction form
    5,218,002.90/7,827,004.35 = 1,431,479.70/x
  3. Step 3: Cross multiply
    5,218,002.90x = 7,827,004.35 × 1,431,479.70
  4. Step 4: Simplify right side
    5,218,002.90x = 11,204,197,838,836.69
  5. Step 5: Solve for x
    x = 11,204,197,838,836.69/5,218,002.90
  6. Step 6: Final answer
    x = 2,147,219.55

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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.