Home / 12,513,080.80-18,769,621.20-9,825,695.20

Finding the Fourth Proportional to 12,513,080.80, 18,769,621.20 and 9,825,695.20

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Solution

The fourth proportional to 12,513,080.80, 18,769,621.20 and 9,825,695.20 is: 14,738,542.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,513,080.80 : 18,769,621.20 = 9,825,695.20 : x
  2. Step 2: Convert to fraction form
    12,513,080.80/18,769,621.20 = 9,825,695.20/x
  3. Step 3: Cross multiply
    12,513,080.80x = 18,769,621.20 × 9,825,695.20
  4. Step 4: Simplify right side
    12,513,080.80x = 184,424,576,930,658.22
  5. Step 5: Solve for x
    x = 184,424,576,930,658.22/12,513,080.80
  6. Step 6: Final answer
    x = 14,738,542.80

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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.