Home / 5,319,601.20-7,979,401.80-2,125,220.40

Finding the Fourth Proportional to 5,319,601.20, 7,979,401.80 and 2,125,220.40

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Solution

The fourth proportional to 5,319,601.20, 7,979,401.80 and 2,125,220.40 is: 3,187,830.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,319,601.20 : 7,979,401.80 = 2,125,220.40 : x
  2. Step 2: Convert to fraction form
    5,319,601.20/7,979,401.80 = 2,125,220.40/x
  3. Step 3: Cross multiply
    5,319,601.20x = 7,979,401.80 × 2,125,220.40
  4. Step 4: Simplify right side
    5,319,601.20x = 16,957,987,485,156.72
  5. Step 5: Solve for x
    x = 16,957,987,485,156.72/5,319,601.20
  6. Step 6: Final answer
    x = 3,187,830.60

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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.