Home / 72,910,520.80-109,365,781.20-29,765,384.80

Finding the Fourth Proportional to 72,910,520.80, 109,365,781.20 and 29,765,384.80

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Solution

The fourth proportional to 72,910,520.80, 109,365,781.20 and 29,765,384.80 is: 44,648,077.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,910,520.80 : 109,365,781.20 = 29,765,384.80 : x
  2. Step 2: Convert to fraction form
    72,910,520.80/109,365,781.20 = 29,765,384.80/x
  3. Step 3: Cross multiply
    72,910,520.80x = 109,365,781.20 × 29,765,384.80
  4. Step 4: Simplify right side
    72,910,520.80x = 3,255,314,561,370,606
  5. Step 5: Solve for x
    x = 3,255,314,561,370,606/72,910,520.80
  6. Step 6: Final answer
    x = 44,648,077.20

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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.