Home / 85,967,714.80-128,951,572.20-74,770,274.80

Finding the Fourth Proportional to 85,967,714.80, 128,951,572.20 and 74,770,274.80

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Solution

The fourth proportional to 85,967,714.80, 128,951,572.20 and 74,770,274.80 is: 112,155,412.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,967,714.80 : 128,951,572.20 = 74,770,274.80 : x
  2. Step 2: Convert to fraction form
    85,967,714.80/128,951,572.20 = 74,770,274.80/x
  3. Step 3: Cross multiply
    85,967,714.80x = 128,951,572.20 × 74,770,274.80
  4. Step 4: Simplify right side
    85,967,714.80x = 9,641,744,489,286,040
  5. Step 5: Solve for x
    x = 9,641,744,489,286,040/85,967,714.80
  6. Step 6: Final answer
    x = 112,155,412.20

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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.