Home / 658,652,406.33-988,019,770.46-221,916,787.77

Finding the Fourth Proportional to 658,652,406.33, 988,019,770.46 and 221,916,787.77

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Solution

The fourth proportional to 658,652,406.33, 988,019,770.46 and 221,916,787.77 is: 332,889,049.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,652,406.33 : 988,019,770.46 = 221,916,787.77 : x
  2. Step 2: Convert to fraction form
    658,652,406.33/988,019,770.46 = 221,916,787.77/x
  3. Step 3: Cross multiply
    658,652,406.33x = 988,019,770.46 × 221,916,787.77
  4. Step 4: Simplify right side
    658,652,406.33x = 219,258,173,712,626,368
  5. Step 5: Solve for x
    x = 219,258,173,712,626,368/658,652,406.33
  6. Step 6: Final answer
    x = 332,889,049.83

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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.