Home / 77,212,664.69-115,818,899.23-19,704,937.15

Finding the Fourth Proportional to 77,212,664.69, 115,818,899.23 and 19,704,937.15

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Solution

The fourth proportional to 77,212,664.69, 115,818,899.23 and 19,704,937.15 is: 29,557,380.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,212,664.69 : 115,818,899.23 = 19,704,937.15 : x
  2. Step 2: Convert to fraction form
    77,212,664.69/115,818,899.23 = 19,704,937.15/x
  3. Step 3: Cross multiply
    77,212,664.69x = 115,818,899.23 × 19,704,937.15
  4. Step 4: Simplify right side
    77,212,664.69x = 2,282,204,129,431,714
  5. Step 5: Solve for x
    x = 2,282,204,129,431,714/77,212,664.69
  6. Step 6: Final answer
    x = 29,557,380.76

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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.