Home / 815,673,910.60-1,223,340,830.70-298,348,035.40

Finding the Fourth Proportional to 815,673,910.60, 1,223,340,830.70 and 298,348,035.40

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Solution

The fourth proportional to 815,673,910.60, 1,223,340,830.70 and 298,348,035.40 is: 447,459,859.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,673,910.60 : 1,223,340,830.70 = 298,348,035.40 : x
  2. Step 2: Convert to fraction form
    815,673,910.60/1,223,340,830.70 = 298,348,035.40/x
  3. Step 3: Cross multiply
    815,673,910.60x = 1,223,340,830.70 × 298,348,035.40
  4. Step 4: Simplify right side
    815,673,910.60x = 364,981,333,463,948,992
  5. Step 5: Solve for x
    x = 364,981,333,463,948,992/815,673,910.60
  6. Step 6: Final answer
    x = 447,459,859.54

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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.