Home / 19,278,621.68-28,899,785.27-6,490,192.64

Finding the Fourth Proportional to 19,278,621.68, 28,899,785.27 and 6,490,192.64

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Solution

The fourth proportional to 19,278,621.68, 28,899,785.27 and 6,490,192.64 is: 9,729,179.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,278,621.68 : 28,899,785.27 = 6,490,192.64 : x
  2. Step 2: Convert to fraction form
    19,278,621.68/28,899,785.27 = 6,490,192.64/x
  3. Step 3: Cross multiply
    19,278,621.68x = 28,899,785.27 × 6,490,192.64
  4. Step 4: Simplify right side
    19,278,621.68x = 187,565,173,528,660.97
  5. Step 5: Solve for x
    x = 187,565,173,528,660.97/19,278,621.68
  6. Step 6: Final answer
    x = 9,729,179.64

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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.