Home / 857,059,961.28-1,285,755,415.20-365,766,060.48

Finding the Fourth Proportional to 857,059,961.28, 1,285,755,415.20 and 365,766,060.48

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Solution

The fourth proportional to 857,059,961.28, 1,285,755,415.20 and 365,766,060.48 is: 548,719,709.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,059,961.28 : 1,285,755,415.20 = 365,766,060.48 : x
  2. Step 2: Convert to fraction form
    857,059,961.28/1,285,755,415.20 = 365,766,060.48/x
  3. Step 3: Cross multiply
    857,059,961.28x = 1,285,755,415.20 × 365,766,060.48
  4. Step 4: Simplify right side
    857,059,961.28x = 470,285,692,958,530,752
  5. Step 5: Solve for x
    x = 470,285,692,958,530,752/857,059,961.28
  6. Step 6: Final answer
    x = 548,719,709.48

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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.