Home / 221,435,729.70-332,153,594.55-129,224,811.30

Finding the Fourth Proportional to 221,435,729.70, 332,153,594.55 and 129,224,811.30

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Solution

The fourth proportional to 221,435,729.70, 332,153,594.55 and 129,224,811.30 is: 193,837,216.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,435,729.70 : 332,153,594.55 = 129,224,811.30 : x
  2. Step 2: Convert to fraction form
    221,435,729.70/332,153,594.55 = 129,224,811.30/x
  3. Step 3: Cross multiply
    221,435,729.70x = 332,153,594.55 × 129,224,811.30
  4. Step 4: Simplify right side
    221,435,729.70x = 42,922,485,578,340,456
  5. Step 5: Solve for x
    x = 42,922,485,578,340,456/221,435,729.70
  6. Step 6: Final answer
    x = 193,837,216.95

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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.