Home / 208,856,679.80-313,285,107.17-79,434,393.80

Finding the Fourth Proportional to 208,856,679.80, 313,285,107.17 and 79,434,393.80

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Solution

The fourth proportional to 208,856,679.80, 313,285,107.17 and 79,434,393.80 is: 119,151,623.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,856,679.80 : 313,285,107.17 = 79,434,393.80 : x
  2. Step 2: Convert to fraction form
    208,856,679.80/313,285,107.17 = 79,434,393.80/x
  3. Step 3: Cross multiply
    208,856,679.80x = 313,285,107.17 × 79,434,393.80
  4. Step 4: Simplify right side
    208,856,679.80x = 24,885,612,573,249,144
  5. Step 5: Solve for x
    x = 24,885,612,573,249,144/208,856,679.80
  6. Step 6: Final answer
    x = 119,151,623.96

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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.