Home / 1,392,362,401.20-1,921,959,910.02-827,845,936.10

Finding the Fourth Proportional to 1,392,362,401.20, 1,921,959,910.02 and 827,845,936.10

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Solution

The fourth proportional to 1,392,362,401.20, 1,921,959,910.02 and 827,845,936.10 is: 1,142,724,551.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,362,401.20 : 1,921,959,910.02 = 827,845,936.10 : x
  2. Step 2: Convert to fraction form
    1,392,362,401.20/1,921,959,910.02 = 827,845,936.10/x
  3. Step 3: Cross multiply
    1,392,362,401.20x = 1,921,959,910.02 × 827,845,936.10
  4. Step 4: Simplify right side
    1,392,362,401.20x = 1,591,086,700,857,178,624
  5. Step 5: Solve for x
    x = 1,591,086,700,857,178,624/1,392,362,401.20
  6. Step 6: Final answer
    x = 1,142,724,551.80

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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.