Home / 311,128,778.02-429,344,936.20-170,004,842.70

Finding the Fourth Proportional to 311,128,778.02, 429,344,936.20 and 170,004,842.70

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Solution

The fourth proportional to 311,128,778.02, 429,344,936.20 and 170,004,842.70 is: 234,599,701.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,128,778.02 : 429,344,936.20 = 170,004,842.70 : x
  2. Step 2: Convert to fraction form
    311,128,778.02/429,344,936.20 = 170,004,842.70/x
  3. Step 3: Cross multiply
    311,128,778.02x = 429,344,936.20 × 170,004,842.70
  4. Step 4: Simplify right side
    311,128,778.02x = 72,990,718,342,722,528
  5. Step 5: Solve for x
    x = 72,990,718,342,722,528/311,128,778.02
  6. Step 6: Final answer
    x = 234,599,701.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.