Home / 1,271,306,267.20-1,905,930,324.02-397,457,830.90

Finding the Fourth Proportional to 1,271,306,267.20, 1,905,930,324.02 and 397,457,830.90

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Solution

The fourth proportional to 1,271,306,267.20, 1,905,930,324.02 and 397,457,830.90 is: 595,865,018.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,306,267.20 : 1,905,930,324.02 = 397,457,830.90 : x
  2. Step 2: Convert to fraction form
    1,271,306,267.20/1,905,930,324.02 = 397,457,830.90/x
  3. Step 3: Cross multiply
    1,271,306,267.20x = 1,905,930,324.02 × 397,457,830.90
  4. Step 4: Simplify right side
    1,271,306,267.20x = 757,526,932,431,523,328
  5. Step 5: Solve for x
    x = 757,526,932,431,523,328/1,271,306,267.20
  6. Step 6: Final answer
    x = 595,865,018.51

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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.