Home / 12,448,827.20-18,673,240.80-7,776,228.80

Finding the Fourth Proportional to 12,448,827.20, 18,673,240.80 and 7,776,228.80

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Solution

The fourth proportional to 12,448,827.20, 18,673,240.80 and 7,776,228.80 is: 11,664,343.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,448,827.20 : 18,673,240.80 = 7,776,228.80 : x
  2. Step 2: Convert to fraction form
    12,448,827.20/18,673,240.80 = 7,776,228.80/x
  3. Step 3: Cross multiply
    12,448,827.20x = 18,673,240.80 × 7,776,228.80
  4. Step 4: Simplify right side
    12,448,827.20x = 145,207,392,898,295.03
  5. Step 5: Solve for x
    x = 145,207,392,898,295.03/12,448,827.20
  6. Step 6: Final answer
    x = 11,664,343.20

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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.