Home / 221,245,358.90-331,584,603.15-196,869,931.70

Finding the Fourth Proportional to 221,245,358.90, 331,584,603.15 and 196,869,931.70

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Solution

The fourth proportional to 221,245,358.90, 331,584,603.15 and 196,869,931.70 is: 295,052,689.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,245,358.90 : 331,584,603.15 = 196,869,931.70 : x
  2. Step 2: Convert to fraction form
    221,245,358.90/331,584,603.15 = 196,869,931.70/x
  3. Step 3: Cross multiply
    221,245,358.90x = 331,584,603.15 × 196,869,931.70
  4. Step 4: Simplify right side
    221,245,358.90x = 65,279,038,174,912,096
  5. Step 5: Solve for x
    x = 65,279,038,174,912,096/221,245,358.90
  6. Step 6: Final answer
    x = 295,052,689.46

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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.