Home / 638,682,531.94-958,017,411.10-201,983,290.48

Finding the Fourth Proportional to 638,682,531.94, 958,017,411.10 and 201,983,290.48

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Solution

The fourth proportional to 638,682,531.94, 958,017,411.10 and 201,983,290.48 is: 302,972,915.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,682,531.94 : 958,017,411.10 = 201,983,290.48 : x
  2. Step 2: Convert to fraction form
    638,682,531.94/958,017,411.10 = 201,983,290.48/x
  3. Step 3: Cross multiply
    638,682,531.94x = 958,017,411.10 × 201,983,290.48
  4. Step 4: Simplify right side
    638,682,531.94x = 193,503,509,031,108,864
  5. Step 5: Solve for x
    x = 193,503,509,031,108,864/638,682,531.94
  6. Step 6: Final answer
    x = 302,972,915.89

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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.