Home / 221,433,941.20-332,150,911.80-129,223,022.80

Finding the Fourth Proportional to 221,433,941.20, 332,150,911.80 and 129,223,022.80

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Solution

The fourth proportional to 221,433,941.20, 332,150,911.80 and 129,223,022.80 is: 193,834,534.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,433,941.20 : 332,150,911.80 = 129,223,022.80 : x
  2. Step 2: Convert to fraction form
    221,433,941.20/332,150,911.80 = 129,223,022.80/x
  3. Step 3: Cross multiply
    221,433,941.20x = 332,150,911.80 × 129,223,022.80
  4. Step 4: Simplify right side
    221,433,941.20x = 42,921,544,848,572,192
  5. Step 5: Solve for x
    x = 42,921,544,848,572,192/221,433,941.20
  6. Step 6: Final answer
    x = 193,834,534.20

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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.