Home / 14,478,872.80-21,718,309.20-9,628,981.60

Finding the Fourth Proportional to 14,478,872.80, 21,718,309.20 and 9,628,981.60

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Solution

The fourth proportional to 14,478,872.80, 21,718,309.20 and 9,628,981.60 is: 14,443,472.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,478,872.80 : 21,718,309.20 = 9,628,981.60 : x
  2. Step 2: Convert to fraction form
    14,478,872.80/21,718,309.20 = 9,628,981.60/x
  3. Step 3: Cross multiply
    14,478,872.80x = 21,718,309.20 × 9,628,981.60
  4. Step 4: Simplify right side
    14,478,872.80x = 209,125,199,669,910.72
  5. Step 5: Solve for x
    x = 209,125,199,669,910.72/14,478,872.80
  6. Step 6: Final answer
    x = 14,443,472.40

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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.