Home / 311,992,102.80-467,988,154.20-221,292,838.80

Finding the Fourth Proportional to 311,992,102.80, 467,988,154.20 and 221,292,838.80

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Solution

The fourth proportional to 311,992,102.80, 467,988,154.20 and 221,292,838.80 is: 331,939,258.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,992,102.80 : 467,988,154.20 = 221,292,838.80 : x
  2. Step 2: Convert to fraction form
    311,992,102.80/467,988,154.20 = 221,292,838.80/x
  3. Step 3: Cross multiply
    311,992,102.80x = 467,988,154.20 × 221,292,838.80
  4. Step 4: Simplify right side
    311,992,102.80x = 103,562,427,167,690,144
  5. Step 5: Solve for x
    x = 103,562,427,167,690,144/311,992,102.80
  6. Step 6: Final answer
    x = 331,939,258.20

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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.