Home / 814,346,441.60-1,221,463,675.20-261,640,803.20

Finding the Fourth Proportional to 814,346,441.60, 1,221,463,675.20 and 261,640,803.20

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Solution

The fourth proportional to 814,346,441.60, 1,221,463,675.20 and 261,640,803.20 is: 392,443,216.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,346,441.60 : 1,221,463,675.20 = 261,640,803.20 : x
  2. Step 2: Convert to fraction form
    814,346,441.60/1,221,463,675.20 = 261,640,803.20/x
  3. Step 3: Cross multiply
    814,346,441.60x = 1,221,463,675.20 × 261,640,803.20
  4. Step 4: Simplify right side
    814,346,441.60x = 319,584,737,058,951,936
  5. Step 5: Solve for x
    x = 319,584,737,058,951,936/814,346,441.60
  6. Step 6: Final answer
    x = 392,443,216.71

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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.