Home / 387,524,185.20-581,286,277.80-100,309,849.20

Finding the Fourth Proportional to 387,524,185.20, 581,286,277.80 and 100,309,849.20

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Solution

The fourth proportional to 387,524,185.20, 581,286,277.80 and 100,309,849.20 is: 150,464,773.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,524,185.20 : 581,286,277.80 = 100,309,849.20 : x
  2. Step 2: Convert to fraction form
    387,524,185.20/581,286,277.80 = 100,309,849.20/x
  3. Step 3: Cross multiply
    387,524,185.20x = 581,286,277.80 × 100,309,849.20
  4. Step 4: Simplify right side
    387,524,185.20x = 58,308,738,868,147,304
  5. Step 5: Solve for x
    x = 58,308,738,868,147,304/387,524,185.20
  6. Step 6: Final answer
    x = 150,464,773.80

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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.