Home / 279,936,034.10-419,904,051.15-210,959,803.70

Finding the Fourth Proportional to 279,936,034.10, 419,904,051.15 and 210,959,803.70

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Solution

The fourth proportional to 279,936,034.10, 419,904,051.15 and 210,959,803.70 is: 316,439,705.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,034.10 : 419,904,051.15 = 210,959,803.70 : x
  2. Step 2: Convert to fraction form
    279,936,034.10/419,904,051.15 = 210,959,803.70/x
  3. Step 3: Cross multiply
    279,936,034.10x = 419,904,051.15 × 210,959,803.70
  4. Step 4: Simplify right side
    279,936,034.10x = 88,582,876,203,438,752
  5. Step 5: Solve for x
    x = 88,582,876,203,438,752/279,936,034.10
  6. Step 6: Final answer
    x = 316,439,705.55

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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.