Home / 15,790,065.91-21,789,265.95-9,174,068.33

Finding the Fourth Proportional to 15,790,065.91, 21,789,265.95 and 9,174,068.33

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Solution

The fourth proportional to 15,790,065.91, 21,789,265.95 and 9,174,068.33 is: 12,659,618.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,790,065.91 : 21,789,265.95 = 9,174,068.33 : x
  2. Step 2: Convert to fraction form
    15,790,065.91/21,789,265.95 = 9,174,068.33/x
  3. Step 3: Cross multiply
    15,790,065.91x = 21,789,265.95 × 9,174,068.33
  4. Step 4: Simplify right side
    15,790,065.91x = 199,896,214,576,896
  5. Step 5: Solve for x
    x = 199,896,214,576,896/15,790,065.91
  6. Step 6: Final answer
    x = 12,659,618.76

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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.