Home / 171,287,721.68-256,890,443.61-79,082,869.46

Finding the Fourth Proportional to 171,287,721.68, 256,890,443.61 and 79,082,869.46

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Solution

The fourth proportional to 171,287,721.68, 256,890,443.61 and 79,082,869.46 is: 118,605,310.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,287,721.68 : 256,890,443.61 = 79,082,869.46 : x
  2. Step 2: Convert to fraction form
    171,287,721.68/256,890,443.61 = 79,082,869.46/x
  3. Step 3: Cross multiply
    171,287,721.68x = 256,890,443.61 × 79,082,869.46
  4. Step 4: Simplify right side
    171,287,721.68x = 20,315,633,417,531,120
  5. Step 5: Solve for x
    x = 20,315,633,417,531,120/171,287,721.68
  6. Step 6: Final answer
    x = 118,605,310.52

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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.