Home / 72,891,285.80-109,364,465.45-43,765,433.45

Finding the Fourth Proportional to 72,891,285.80, 109,364,465.45 and 43,765,433.45

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Solution

The fourth proportional to 72,891,285.80, 109,364,465.45 and 43,765,433.45 is: 65,664,683.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,891,285.80 : 109,364,465.45 = 43,765,433.45 : x
  2. Step 2: Convert to fraction form
    72,891,285.80/109,364,465.45 = 43,765,433.45/x
  3. Step 3: Cross multiply
    72,891,285.80x = 109,364,465.45 × 43,765,433.45
  4. Step 4: Simplify right side
    72,891,285.80x = 4,786,383,234,446,800
  5. Step 5: Solve for x
    x = 4,786,383,234,446,800/72,891,285.80
  6. Step 6: Final answer
    x = 65,664,683.81

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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.