Home / 77,212,669.25-115,818,906.06-19,704,941.71

Finding the Fourth Proportional to 77,212,669.25, 115,818,906.06 and 19,704,941.71

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Solution

The fourth proportional to 77,212,669.25, 115,818,906.06 and 19,704,941.71 is: 29,557,387.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,212,669.25 : 115,818,906.06 = 19,704,941.71 : x
  2. Step 2: Convert to fraction form
    77,212,669.25/115,818,906.06 = 19,704,941.71/x
  3. Step 3: Cross multiply
    77,212,669.25x = 115,818,906.06 × 19,704,941.71
  4. Step 4: Simplify right side
    77,212,669.25x = 2,282,204,792,538,718.50
  5. Step 5: Solve for x
    x = 2,282,204,792,538,718.50/77,212,669.25
  6. Step 6: Final answer
    x = 29,557,387.60

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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.