Home / 77,212,682.05-115,818,925.26-19,704,954.49

Finding the Fourth Proportional to 77,212,682.05, 115,818,925.26 and 19,704,954.49

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Solution

The fourth proportional to 77,212,682.05, 115,818,925.26 and 19,704,954.49 is: 29,557,406.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,212,682.05 : 115,818,925.26 = 19,704,954.49 : x
  2. Step 2: Convert to fraction form
    77,212,682.05/115,818,925.26 = 19,704,954.49/x
  3. Step 3: Cross multiply
    77,212,682.05x = 115,818,925.26 × 19,704,954.49
  4. Step 4: Simplify right side
    77,212,682.05x = 2,282,206,651,329,011.50
  5. Step 5: Solve for x
    x = 2,282,206,651,329,011.50/77,212,682.05
  6. Step 6: Final answer
    x = 29,557,406.77

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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.