Home / 397,072,685.66-595,625,051.90-138,314,077.34

Finding the Fourth Proportional to 397,072,685.66, 595,625,051.90 and 138,314,077.34

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Solution

The fourth proportional to 397,072,685.66, 595,625,051.90 and 138,314,077.34 is: 207,476,697.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,072,685.66 : 595,625,051.90 = 138,314,077.34 : x
  2. Step 2: Convert to fraction form
    397,072,685.66/595,625,051.90 = 138,314,077.34/x
  3. Step 3: Cross multiply
    397,072,685.66x = 595,625,051.90 × 138,314,077.34
  4. Step 4: Simplify right side
    397,072,685.66x = 82,383,329,491,505,776
  5. Step 5: Solve for x
    x = 82,383,329,491,505,776/397,072,685.66
  6. Step 6: Final answer
    x = 207,476,697.51

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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.