Home / 12,579,485.20-18,869,227.80-12,366,908.80

Finding the Fourth Proportional to 12,579,485.20, 18,869,227.80 and 12,366,908.80

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Solution

The fourth proportional to 12,579,485.20, 18,869,227.80 and 12,366,908.80 is: 18,550,363.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,579,485.20 : 18,869,227.80 = 12,366,908.80 : x
  2. Step 2: Convert to fraction form
    12,579,485.20/18,869,227.80 = 12,366,908.80/x
  3. Step 3: Cross multiply
    12,579,485.20x = 18,869,227.80 × 12,366,908.80
  4. Step 4: Simplify right side
    12,579,485.20x = 233,354,019,329,024.66
  5. Step 5: Solve for x
    x = 233,354,019,329,024.66/12,579,485.20
  6. Step 6: Final answer
    x = 18,550,363.20

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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.