Home / 77,212,667.94-115,818,904.08-19,704,940.38

Finding the Fourth Proportional to 77,212,667.94, 115,818,904.08 and 19,704,940.38

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Solution

The fourth proportional to 77,212,667.94, 115,818,904.08 and 19,704,940.38 is: 29,557,385.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,212,667.94 : 115,818,904.08 = 19,704,940.38 : x
  2. Step 2: Convert to fraction form
    77,212,667.94/115,818,904.08 = 19,704,940.38/x
  3. Step 3: Cross multiply
    77,212,667.94x = 115,818,904.08 × 19,704,940.38
  4. Step 4: Simplify right side
    77,212,667.94x = 2,282,204,599,773,338.50
  5. Step 5: Solve for x
    x = 2,282,204,599,773,338.50/77,212,667.94
  6. Step 6: Final answer
    x = 29,557,385.60

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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.