Home / 27,206,927.57-37,547,139.38-20,489,236.78

Finding the Fourth Proportional to 27,206,927.57, 37,547,139.38 and 20,489,236.78

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Solution

The fourth proportional to 27,206,927.57, 37,547,139.38 and 20,489,236.78 is: 28,276,336.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,206,927.57 : 37,547,139.38 = 20,489,236.78 : x
  2. Step 2: Convert to fraction form
    27,206,927.57/37,547,139.38 = 20,489,236.78/x
  3. Step 3: Cross multiply
    27,206,927.57x = 37,547,139.38 × 20,489,236.78
  4. Step 4: Simplify right side
    27,206,927.57x = 769,312,228,972,168.38
  5. Step 5: Solve for x
    x = 769,312,228,972,168.38/27,206,927.57
  6. Step 6: Final answer
    x = 28,276,336.13

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1.5x scale

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.