Home / 221,336,658.40-332,004,987.60-67,982,468.80

Finding the Fourth Proportional to 221,336,658.40, 332,004,987.60 and 67,982,468.80

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Solution

The fourth proportional to 221,336,658.40, 332,004,987.60 and 67,982,468.80 is: 101,973,703.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,336,658.40 : 332,004,987.60 = 67,982,468.80 : x
  2. Step 2: Convert to fraction form
    221,336,658.40/332,004,987.60 = 67,982,468.80/x
  3. Step 3: Cross multiply
    221,336,658.40x = 332,004,987.60 × 67,982,468.80
  4. Step 4: Simplify right side
    221,336,658.40x = 22,570,518,710,961,388
  5. Step 5: Solve for x
    x = 22,570,518,710,961,388/221,336,658.40
  6. Step 6: Final answer
    x = 101,973,703.20

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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.