Home / 170,830,416.30-256,245,624.45-142,108,982.70

Finding the Fourth Proportional to 170,830,416.30, 256,245,624.45 and 142,108,982.70

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Solution

The fourth proportional to 170,830,416.30, 256,245,624.45 and 142,108,982.70 is: 213,163,474.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,830,416.30 : 256,245,624.45 = 142,108,982.70 : x
  2. Step 2: Convert to fraction form
    170,830,416.30/256,245,624.45 = 142,108,982.70/x
  3. Step 3: Cross multiply
    170,830,416.30x = 256,245,624.45 × 142,108,982.70
  4. Step 4: Simplify right side
    170,830,416.30x = 36,414,805,011,915,744
  5. Step 5: Solve for x
    x = 36,414,805,011,915,744/170,830,416.30
  6. Step 6: Final answer
    x = 213,163,474.05

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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.