Home / 638,682,585.48-958,017,491.52-201,983,344.02

Finding the Fourth Proportional to 638,682,585.48, 958,017,491.52 and 201,983,344.02

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Solution

The fourth proportional to 638,682,585.48, 958,017,491.52 and 201,983,344.02 is: 302,972,996.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,682,585.48 : 958,017,491.52 = 201,983,344.02 : x
  2. Step 2: Convert to fraction form
    638,682,585.48/958,017,491.52 = 201,983,344.02/x
  3. Step 3: Cross multiply
    638,682,585.48x = 958,017,491.52 × 201,983,344.02
  4. Step 4: Simplify right side
    638,682,585.48x = 193,503,576,566,861,600
  5. Step 5: Solve for x
    x = 193,503,576,566,861,600/638,682,585.48
  6. Step 6: Final answer
    x = 302,972,996.24

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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.