Home / 518,623,211.03-777,936,134.21-211,915,323.90

Finding the Fourth Proportional to 518,623,211.03, 777,936,134.21 and 211,915,323.90

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Solution

The fourth proportional to 518,623,211.03, 777,936,134.21 and 211,915,323.90 is: 317,873,524.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,623,211.03 : 777,936,134.21 = 211,915,323.90 : x
  2. Step 2: Convert to fraction form
    518,623,211.03/777,936,134.21 = 211,915,323.90/x
  3. Step 3: Cross multiply
    518,623,211.03x = 777,936,134.21 × 211,915,323.90
  4. Step 4: Simplify right side
    518,623,211.03x = 164,856,587,853,566,464
  5. Step 5: Solve for x
    x = 164,856,587,853,566,464/518,623,211.03
  6. Step 6: Final answer
    x = 317,873,524.26

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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.