Home / 198,201,223.40-297,301,835.10-129,326,469.80

Finding the Fourth Proportional to 198,201,223.40, 297,301,835.10 and 129,326,469.80

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Solution

The fourth proportional to 198,201,223.40, 297,301,835.10 and 129,326,469.80 is: 193,989,704.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,201,223.40 : 297,301,835.10 = 129,326,469.80 : x
  2. Step 2: Convert to fraction form
    198,201,223.40/297,301,835.10 = 129,326,469.80/x
  3. Step 3: Cross multiply
    198,201,223.40x = 297,301,835.10 × 129,326,469.80
  4. Step 4: Simplify right side
    198,201,223.40x = 38,448,996,798,544,736
  5. Step 5: Solve for x
    x = 38,448,996,798,544,736/198,201,223.40
  6. Step 6: Final answer
    x = 193,989,704.70

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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.