Home / 8,073,905.20-12,110,857.80-3,280,001.20

Finding the Fourth Proportional to 8,073,905.20, 12,110,857.80 and 3,280,001.20

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Solution

The fourth proportional to 8,073,905.20, 12,110,857.80 and 3,280,001.20 is: 4,920,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,073,905.20 : 12,110,857.80 = 3,280,001.20 : x
  2. Step 2: Convert to fraction form
    8,073,905.20/12,110,857.80 = 3,280,001.20/x
  3. Step 3: Cross multiply
    8,073,905.20x = 12,110,857.80 × 3,280,001.20
  4. Step 4: Simplify right side
    8,073,905.20x = 39,723,628,117,029.37
  5. Step 5: Solve for x
    x = 39,723,628,117,029.37/8,073,905.20
  6. Step 6: Final answer
    x = 4,920,001.80

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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.