Home / 77,709,340.51-107,287,286.87-49,467,648.46

Finding the Fourth Proportional to 77,709,340.51, 107,287,286.87 and 49,467,648.46

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Solution

The fourth proportional to 77,709,340.51, 107,287,286.87 and 49,467,648.46 is: 68,296,163.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,709,340.51 : 107,287,286.87 = 49,467,648.46 : x
  2. Step 2: Convert to fraction form
    77,709,340.51/107,287,286.87 = 49,467,648.46/x
  3. Step 3: Cross multiply
    77,709,340.51x = 107,287,286.87 × 49,467,648.46
  4. Step 4: Simplify right side
    77,709,340.51x = 5,307,249,790,328,559
  5. Step 5: Solve for x
    x = 5,307,249,790,328,559/77,709,340.51
  6. Step 6: Final answer
    x = 68,296,163.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.