Home / 368,954,366.91-509,160,414.20-210,182,136.78

Finding the Fourth Proportional to 368,954,366.91, 509,160,414.20 and 210,182,136.78

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Solution

The fourth proportional to 368,954,366.91, 509,160,414.20 and 210,182,136.78 is: 290,053,278.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,954,366.91 : 509,160,414.20 = 210,182,136.78 : x
  2. Step 2: Convert to fraction form
    368,954,366.91/509,160,414.20 = 210,182,136.78/x
  3. Step 3: Cross multiply
    368,954,366.91x = 509,160,414.20 × 210,182,136.78
  4. Step 4: Simplify right side
    368,954,366.91x = 107,016,423,820,345,856
  5. Step 5: Solve for x
    x = 107,016,423,820,345,856/368,954,366.91
  6. Step 6: Final answer
    x = 290,053,278.72

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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.