Home / 12,627,384.77-18,941,753.36-3,990,828.05

Finding the Fourth Proportional to 12,627,384.77, 18,941,753.36 and 3,990,828.05

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Solution

The fourth proportional to 12,627,384.77, 18,941,753.36 and 3,990,828.05 is: 5,986,455.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,627,384.77 : 18,941,753.36 = 3,990,828.05 : x
  2. Step 2: Convert to fraction form
    12,627,384.77/18,941,753.36 = 3,990,828.05/x
  3. Step 3: Cross multiply
    12,627,384.77x = 18,941,753.36 × 3,990,828.05
  4. Step 4: Simplify right side
    12,627,384.77x = 75,593,280,510,606.84
  5. Step 5: Solve for x
    x = 75,593,280,510,606.84/12,627,384.77
  6. Step 6: Final answer
    x = 5,986,455.78

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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.