Home / 12,039,981.92-18,060,007.91-5,121,678.83

Finding the Fourth Proportional to 12,039,981.92, 18,060,007.91 and 5,121,678.83

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Solution

The fourth proportional to 12,039,981.92, 18,060,007.91 and 5,121,678.83 is: 7,682,533.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,039,981.92 : 18,060,007.91 = 5,121,678.83 : x
  2. Step 2: Convert to fraction form
    12,039,981.92/18,060,007.91 = 5,121,678.83/x
  3. Step 3: Cross multiply
    12,039,981.92x = 18,060,007.91 × 5,121,678.83
  4. Step 4: Simplify right side
    12,039,981.92x = 92,497,560,201,821.17
  5. Step 5: Solve for x
    x = 92,497,560,201,821.17/12,039,981.92
  6. Step 6: Final answer
    x = 7,682,533.15

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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.