Home / 1,271,306,285.89-1,905,930,352.37-397,457,849.59

Finding the Fourth Proportional to 1,271,306,285.89, 1,905,930,352.37 and 397,457,849.59

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Solution

The fourth proportional to 1,271,306,285.89, 1,905,930,352.37 and 397,457,849.59 is: 595,865,046.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,306,285.89 : 1,905,930,352.37 = 397,457,849.59 : x
  2. Step 2: Convert to fraction form
    1,271,306,285.89/1,905,930,352.37 = 397,457,849.59/x
  3. Step 3: Cross multiply
    1,271,306,285.89x = 1,905,930,352.37 × 397,457,849.59
  4. Step 4: Simplify right side
    1,271,306,285.89x = 757,526,979,317,519,872
  5. Step 5: Solve for x
    x = 757,526,979,317,519,872/1,271,306,285.89
  6. Step 6: Final answer
    x = 595,865,046.63

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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.