Home / 513,219,187.80-769,828,781.70-349,960,512.60

Finding the Fourth Proportional to 513,219,187.80, 769,828,781.70 and 349,960,512.60

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Solution

The fourth proportional to 513,219,187.80, 769,828,781.70 and 349,960,512.60 is: 524,940,768.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,219,187.80 : 769,828,781.70 = 349,960,512.60 : x
  2. Step 2: Convert to fraction form
    513,219,187.80/769,828,781.70 = 349,960,512.60/x
  3. Step 3: Cross multiply
    513,219,187.80x = 769,828,781.70 × 349,960,512.60
  4. Step 4: Simplify right side
    513,219,187.80x = 269,409,675,057,965,536
  5. Step 5: Solve for x
    x = 269,409,675,057,965,536/513,219,187.80
  6. Step 6: Final answer
    x = 524,940,768.90

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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.