Home / 12,782,731.64-17,639,896.50-6,981,536.75

Finding the Fourth Proportional to 12,782,731.64, 17,639,896.50 and 6,981,536.75

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Solution

The fourth proportional to 12,782,731.64, 17,639,896.50 and 6,981,536.75 is: 9,634,371.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,782,731.64 : 17,639,896.50 = 6,981,536.75 : x
  2. Step 2: Convert to fraction form
    12,782,731.64/17,639,896.50 = 6,981,536.75/x
  3. Step 3: Cross multiply
    12,782,731.64x = 17,639,896.50 × 6,981,536.75
  4. Step 4: Simplify right side
    12,782,731.64x = 123,153,585,592,746.89
  5. Step 5: Solve for x
    x = 123,153,585,592,746.89/12,782,731.64
  6. Step 6: Final answer
    x = 9,634,371.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.