Home / 221,429,840.40-332,144,760.60-91,994,432.40

Finding the Fourth Proportional to 221,429,840.40, 332,144,760.60 and 91,994,432.40

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Solution

The fourth proportional to 221,429,840.40, 332,144,760.60 and 91,994,432.40 is: 137,991,648.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,429,840.40 : 332,144,760.60 = 91,994,432.40 : x
  2. Step 2: Convert to fraction form
    221,429,840.40/332,144,760.60 = 91,994,432.40/x
  3. Step 3: Cross multiply
    221,429,840.40x = 332,144,760.60 × 91,994,432.40
  4. Step 4: Simplify right side
    221,429,840.40x = 30,555,468,726,030,888
  5. Step 5: Solve for x
    x = 30,555,468,726,030,888/221,429,840.40
  6. Step 6: Final answer
    x = 137,991,648.60

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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.