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Finding the Fourth Proportional to 16,786,376.80, 25,192,006.80 and 12,307,400.80

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Solution

The fourth proportional to 16,786,376.80, 25,192,006.80 and 12,307,400.80 is: 18,470,223.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,786,376.80 : 25,192,006.80 = 12,307,400.80 : x
  2. Step 2: Convert to fraction form
    16,786,376.80/25,192,006.80 = 12,307,400.80/x
  3. Step 3: Cross multiply
    16,786,376.80x = 25,192,006.80 × 12,307,400.80
  4. Step 4: Simplify right side
    16,786,376.80x = 310,048,124,643,925.44
  5. Step 5: Solve for x
    x = 310,048,124,643,925.44/16,786,376.80
  6. Step 6: Final answer
    x = 18,470,223.11

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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.