Home / 81,086,369.40-111,900,996.72-46,278,361.68

Finding the Fourth Proportional to 81,086,369.40, 111,900,996.72 and 46,278,361.68

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Solution

The fourth proportional to 81,086,369.40, 111,900,996.72 and 46,278,361.68 is: 63,865,170.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,086,369.40 : 111,900,996.72 = 46,278,361.68 : x
  2. Step 2: Convert to fraction form
    81,086,369.40/111,900,996.72 = 46,278,361.68/x
  3. Step 3: Cross multiply
    81,086,369.40x = 111,900,996.72 × 46,278,361.68
  4. Step 4: Simplify right side
    81,086,369.40x = 5,178,594,798,560,654
  5. Step 5: Solve for x
    x = 5,178,594,798,560,654/81,086,369.40
  6. Step 6: Final answer
    x = 63,865,170.40

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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.