Home / 72,715,361.40-100,383,562.08-45,222,147

Finding the Fourth Proportional to 72,715,361.40, 100,383,562.08 and 45,222,147

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Solution

The fourth proportional to 72,715,361.40, 100,383,562.08 and 45,222,147 is: 62,429,177.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,715,361.40 : 100,383,562.08 = 45,222,147 : x
  2. Step 2: Convert to fraction form
    72,715,361.40/100,383,562.08 = 45,222,147/x
  3. Step 3: Cross multiply
    72,715,361.40x = 100,383,562.08 × 45,222,147
  4. Step 4: Simplify right side
    72,715,361.40x = 4,539,560,200,765,386
  5. Step 5: Solve for x
    x = 4,539,560,200,765,386/72,715,361.40
  6. Step 6: Final answer
    x = 62,429,177.46

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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.