Home / 133,035,012.20-199,552,518.30-78,615,453.80

Finding the Fourth Proportional to 133,035,012.20, 199,552,518.30 and 78,615,453.80

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Solution

The fourth proportional to 133,035,012.20, 199,552,518.30 and 78,615,453.80 is: 117,923,180.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,035,012.20 : 199,552,518.30 = 78,615,453.80 : x
  2. Step 2: Convert to fraction form
    133,035,012.20/199,552,518.30 = 78,615,453.80/x
  3. Step 3: Cross multiply
    133,035,012.20x = 199,552,518.30 × 78,615,453.80
  4. Step 4: Simplify right side
    133,035,012.20x = 15,687,911,783,087,304
  5. Step 5: Solve for x
    x = 15,687,911,783,087,304/133,035,012.20
  6. Step 6: Final answer
    x = 117,923,180.70

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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.