Home / 620,209,961.90-929,438,063.82-343,982,873.33

Finding the Fourth Proportional to 620,209,961.90, 929,438,063.82 and 343,982,873.33

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Solution

The fourth proportional to 620,209,961.90, 929,438,063.82 and 343,982,873.33 is: 515,487,972.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,209,961.90 : 929,438,063.82 = 343,982,873.33 : x
  2. Step 2: Convert to fraction form
    620,209,961.90/929,438,063.82 = 343,982,873.33/x
  3. Step 3: Cross multiply
    620,209,961.90x = 929,438,063.82 × 343,982,873.33
  4. Step 4: Simplify right side
    620,209,961.90x = 319,710,775,770,428,352
  5. Step 5: Solve for x
    x = 319,710,775,770,428,352/620,209,961.90
  6. Step 6: Final answer
    x = 515,487,972.48

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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.