Home / 12,485,320.80-18,727,981.20-9,650,968.80

Finding the Fourth Proportional to 12,485,320.80, 18,727,981.20 and 9,650,968.80

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Solution

The fourth proportional to 12,485,320.80, 18,727,981.20 and 9,650,968.80 is: 14,476,453.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,485,320.80 : 18,727,981.20 = 9,650,968.80 : x
  2. Step 2: Convert to fraction form
    12,485,320.80/18,727,981.20 = 9,650,968.80/x
  3. Step 3: Cross multiply
    12,485,320.80x = 18,727,981.20 × 9,650,968.80
  4. Step 4: Simplify right side
    12,485,320.80x = 180,743,162,248,186.56
  5. Step 5: Solve for x
    x = 180,743,162,248,186.56/12,485,320.80
  6. Step 6: Final answer
    x = 14,476,453.20

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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.