Home / 815,040,933.40-1,222,690,035.84-348,705,379.45

Finding the Fourth Proportional to 815,040,933.40, 1,222,690,035.84 and 348,705,379.45

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Solution

The fourth proportional to 815,040,933.40, 1,222,690,035.84 and 348,705,379.45 is: 523,113,104.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,040,933.40 : 1,222,690,035.84 = 348,705,379.45 : x
  2. Step 2: Convert to fraction form
    815,040,933.40/1,222,690,035.84 = 348,705,379.45/x
  3. Step 3: Cross multiply
    815,040,933.40x = 1,222,690,035.84 × 348,705,379.45
  4. Step 4: Simplify right side
    815,040,933.40x = 426,358,592,897,321,280
  5. Step 5: Solve for x
    x = 426,358,592,897,321,280/815,040,933.40
  6. Step 6: Final answer
    x = 523,113,104.42

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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.