Home / 8,242,343.52-12,353,959.44-3,121,519.20

Finding the Fourth Proportional to 8,242,343.52, 12,353,959.44 and 3,121,519.20

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Solution

The fourth proportional to 8,242,343.52, 12,353,959.44 and 3,121,519.20 is: 4,678,659.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,242,343.52 : 12,353,959.44 = 3,121,519.20 : x
  2. Step 2: Convert to fraction form
    8,242,343.52/12,353,959.44 = 3,121,519.20/x
  3. Step 3: Cross multiply
    8,242,343.52x = 12,353,959.44 × 3,121,519.20
  4. Step 4: Simplify right side
    8,242,343.52x = 38,563,121,587,981.25
  5. Step 5: Solve for x
    x = 38,563,121,587,981.25/8,242,343.52
  6. Step 6: Final answer
    x = 4,678,659.84

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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.