Home / 638,682,527.93-958,017,405.10-201,983,286.47

Finding the Fourth Proportional to 638,682,527.93, 958,017,405.10 and 201,983,286.47

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Solution

The fourth proportional to 638,682,527.93, 958,017,405.10 and 201,983,286.47 is: 302,972,909.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,682,527.93 : 958,017,405.10 = 201,983,286.47 : x
  2. Step 2: Convert to fraction form
    638,682,527.93/958,017,405.10 = 201,983,286.47/x
  3. Step 3: Cross multiply
    638,682,527.93x = 958,017,405.10 × 201,983,286.47
  4. Step 4: Simplify right side
    638,682,527.93x = 193,503,503,977,466,592
  5. Step 5: Solve for x
    x = 193,503,503,977,466,592/638,682,527.93
  6. Step 6: Final answer
    x = 302,972,909.88

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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.