Home / 1,248,823,180,073.60-1,871,912,676,654.90-420,062,783,722.56

Finding the Fourth Proportional to 1,248,823,180,073.60, 1,871,912,676,654.90 and 420,062,783,722.56

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Solution

The fourth proportional to 1,248,823,180,073.60, 1,871,912,676,654.90 and 420,062,783,722.56 is: 629,649,467,104.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,823,180,073.60 : 1,871,912,676,654.90 = 420,062,783,722.56 : x
  2. Step 2: Convert to fraction form
    1,248,823,180,073.60/1,871,912,676,654.90 = 420,062,783,722.56/x
  3. Step 3: Cross multiply
    1,248,823,180,073.60x = 1,871,912,676,654.90 × 420,062,783,722.56
  4. Step 4: Simplify right side
    1,248,823,180,073.60x = 786,320,849,841,205,540,814,848
  5. Step 5: Solve for x
    x = 786,320,849,841,205,540,814,848/1,248,823,180,073.60
  6. Step 6: Final answer
    x = 629,649,467,104.59

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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.