Home / 768,391,874.64-1,060,380,563.40-415,967,604.12

Finding the Fourth Proportional to 768,391,874.64, 1,060,380,563.40 and 415,967,604.12

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Solution

The fourth proportional to 768,391,874.64, 1,060,380,563.40 and 415,967,604.12 is: 574,035,172.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,391,874.64 : 1,060,380,563.40 = 415,967,604.12 : x
  2. Step 2: Convert to fraction form
    768,391,874.64/1,060,380,563.40 = 415,967,604.12/x
  3. Step 3: Cross multiply
    768,391,874.64x = 1,060,380,563.40 × 415,967,604.12
  4. Step 4: Simplify right side
    768,391,874.64x = 441,083,962,412,913,728
  5. Step 5: Solve for x
    x = 441,083,962,412,913,728/768,391,874.64
  6. Step 6: Final answer
    x = 574,035,172.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.