Home / 27,783,129.28-38,340,718.40-15,559,986.28

Finding the Fourth Proportional to 27,783,129.28, 38,340,718.40 and 15,559,986.28

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Solution

The fourth proportional to 27,783,129.28, 38,340,718.40 and 15,559,986.28 is: 21,472,781.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,783,129.28 : 38,340,718.40 = 15,559,986.28 : x
  2. Step 2: Convert to fraction form
    27,783,129.28/38,340,718.40 = 15,559,986.28/x
  3. Step 3: Cross multiply
    27,783,129.28x = 38,340,718.40 × 15,559,986.28
  4. Step 4: Simplify right side
    27,783,129.28x = 596,581,052,269,343.50
  5. Step 5: Solve for x
    x = 596,581,052,269,343.50/27,783,129.28
  6. Step 6: Final answer
    x = 21,472,781.06

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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.