Home / 421,936,458.56-582,034,578.72-245,703,682.88

Finding the Fourth Proportional to 421,936,458.56, 582,034,578.72 and 245,703,682.88

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Solution

The fourth proportional to 421,936,458.56, 582,034,578.72 and 245,703,682.88 is: 338,932,644.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,936,458.56 : 582,034,578.72 = 245,703,682.88 : x
  2. Step 2: Convert to fraction form
    421,936,458.56/582,034,578.72 = 245,703,682.88/x
  3. Step 3: Cross multiply
    421,936,458.56x = 582,034,578.72 × 245,703,682.88
  4. Step 4: Simplify right side
    421,936,458.56x = 143,008,039,555,013,280
  5. Step 5: Solve for x
    x = 143,008,039,555,013,280/421,936,458.56
  6. Step 6: Final answer
    x = 338,932,644.13

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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.