Home / 71,542,673.70-107,314,010.55-17,689,985.70

Finding the Fourth Proportional to 71,542,673.70, 107,314,010.55 and 17,689,985.70

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Solution

The fourth proportional to 71,542,673.70, 107,314,010.55 and 17,689,985.70 is: 26,534,978.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,542,673.70 : 107,314,010.55 = 17,689,985.70 : x
  2. Step 2: Convert to fraction form
    71,542,673.70/107,314,010.55 = 17,689,985.70/x
  3. Step 3: Cross multiply
    71,542,673.70x = 107,314,010.55 × 17,689,985.70
  4. Step 4: Simplify right side
    71,542,673.70x = 1,898,383,312,039,149
  5. Step 5: Solve for x
    x = 1,898,383,312,039,149/71,542,673.70
  6. Step 6: Final answer
    x = 26,534,978.55

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.