Home / 1,271,306,261.20-1,905,930,315.03-397,457,824.90

Finding the Fourth Proportional to 1,271,306,261.20, 1,905,930,315.03 and 397,457,824.90

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Solution

The fourth proportional to 1,271,306,261.20, 1,905,930,315.03 and 397,457,824.90 is: 595,865,009.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,306,261.20 : 1,905,930,315.03 = 397,457,824.90 : x
  2. Step 2: Convert to fraction form
    1,271,306,261.20/1,905,930,315.03 = 397,457,824.90/x
  3. Step 3: Cross multiply
    1,271,306,261.20x = 1,905,930,315.03 × 397,457,824.90
  4. Step 4: Simplify right side
    1,271,306,261.20x = 757,526,917,422,795,520
  5. Step 5: Solve for x
    x = 757,526,917,422,795,520/1,271,306,261.20
  6. Step 6: Final answer
    x = 595,865,009.51

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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.