Home / 409,043,827.80-613,652,018.85-132,673,578.21

Finding the Fourth Proportional to 409,043,827.80, 613,652,018.85 and 132,673,578.21

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Solution

The fourth proportional to 409,043,827.80, 613,652,018.85 and 132,673,578.21 is: 199,038,351.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,043,827.80 : 613,652,018.85 = 132,673,578.21 : x
  2. Step 2: Convert to fraction form
    409,043,827.80/613,652,018.85 = 132,673,578.21/x
  3. Step 3: Cross multiply
    409,043,827.80x = 613,652,018.85 × 132,673,578.21
  4. Step 4: Simplify right side
    409,043,827.80x = 81,415,409,116,619,872
  5. Step 5: Solve for x
    x = 81,415,409,116,619,872/409,043,827.80
  6. Step 6: Final answer
    x = 199,038,351.35

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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.