Home / 77,469,711.80-116,204,567.70-20,736,015.80

Finding the Fourth Proportional to 77,469,711.80, 116,204,567.70 and 20,736,015.80

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Solution

The fourth proportional to 77,469,711.80, 116,204,567.70 and 20,736,015.80 is: 31,104,023.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,469,711.80 : 116,204,567.70 = 20,736,015.80 : x
  2. Step 2: Convert to fraction form
    77,469,711.80/116,204,567.70 = 20,736,015.80/x
  3. Step 3: Cross multiply
    77,469,711.80x = 116,204,567.70 × 20,736,015.80
  4. Step 4: Simplify right side
    77,469,711.80x = 2,409,619,751,859,370
  5. Step 5: Solve for x
    x = 2,409,619,751,859,370/77,469,711.80
  6. Step 6: Final answer
    x = 31,104,023.70

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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.