Home / 1,271,306,286.65-1,905,930,353.51-397,457,850.35

Finding the Fourth Proportional to 1,271,306,286.65, 1,905,930,353.51 and 397,457,850.35

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Solution

The fourth proportional to 1,271,306,286.65, 1,905,930,353.51 and 397,457,850.35 is: 595,865,047.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,306,286.65 : 1,905,930,353.51 = 397,457,850.35 : x
  2. Step 2: Convert to fraction form
    1,271,306,286.65/1,905,930,353.51 = 397,457,850.35/x
  3. Step 3: Cross multiply
    1,271,306,286.65x = 1,905,930,353.51 × 397,457,850.35
  4. Step 4: Simplify right side
    1,271,306,286.65x = 757,526,981,211,383,296
  5. Step 5: Solve for x
    x = 757,526,981,211,383,296/1,271,306,286.65
  6. Step 6: Final answer
    x = 595,865,047.76

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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.