Home / 20,131,826.04-27,780,929.67-11,428,856.37

Finding the Fourth Proportional to 20,131,826.04, 27,780,929.67 and 11,428,856.37

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Solution

The fourth proportional to 20,131,826.04, 27,780,929.67 and 11,428,856.37 is: 15,771,259.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,131,826.04 : 27,780,929.67 = 11,428,856.37 : x
  2. Step 2: Convert to fraction form
    20,131,826.04/27,780,929.67 = 11,428,856.37/x
  3. Step 3: Cross multiply
    20,131,826.04x = 27,780,929.67 × 11,428,856.37
  4. Step 4: Simplify right side
    20,131,826.04x = 317,504,255,023,501.50
  5. Step 5: Solve for x
    x = 317,504,255,023,501.50/20,131,826.04
  6. Step 6: Final answer
    x = 15,771,259.62

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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.