Home / 170,187,890.80-255,281,836.20-168,912,432.40

Finding the Fourth Proportional to 170,187,890.80, 255,281,836.20 and 168,912,432.40

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Solution

The fourth proportional to 170,187,890.80, 255,281,836.20 and 168,912,432.40 is: 253,368,648.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,187,890.80 : 255,281,836.20 = 168,912,432.40 : x
  2. Step 2: Convert to fraction form
    170,187,890.80/255,281,836.20 = 168,912,432.40/x
  3. Step 3: Cross multiply
    170,187,890.80x = 255,281,836.20 × 168,912,432.40
  4. Step 4: Simplify right side
    170,187,890.80x = 43,120,275,900,080,376
  5. Step 5: Solve for x
    x = 43,120,275,900,080,376/170,187,890.80
  6. Step 6: Final answer
    x = 253,368,648.60

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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.