Home / 27,765,520.96-38,315,938.56-15,375,368.80

Finding the Fourth Proportional to 27,765,520.96, 38,315,938.56 and 15,375,368.80

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Solution

The fourth proportional to 27,765,520.96, 38,315,938.56 and 15,375,368.80 is: 21,217,742.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,765,520.96 : 38,315,938.56 = 15,375,368.80 : x
  2. Step 2: Convert to fraction form
    27,765,520.96/38,315,938.56 = 15,375,368.80/x
  3. Step 3: Cross multiply
    27,765,520.96x = 38,315,938.56 × 15,375,368.80
  4. Step 4: Simplify right side
    27,765,520.96x = 589,121,686,278,141
  5. Step 5: Solve for x
    x = 589,121,686,278,141/27,765,520.96
  6. Step 6: Final answer
    x = 21,217,742.94

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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.