Home / 620,209,961.39-929,438,063.07-343,982,872.82

Finding the Fourth Proportional to 620,209,961.39, 929,438,063.07 and 343,982,872.82

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Solution

The fourth proportional to 620,209,961.39, 929,438,063.07 and 343,982,872.82 is: 515,487,971.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,209,961.39 : 929,438,063.07 = 343,982,872.82 : x
  2. Step 2: Convert to fraction form
    620,209,961.39/929,438,063.07 = 343,982,872.82/x
  3. Step 3: Cross multiply
    620,209,961.39x = 929,438,063.07 × 343,982,872.82
  4. Step 4: Simplify right side
    620,209,961.39x = 319,710,775,043,074,944
  5. Step 5: Solve for x
    x = 319,710,775,043,074,944/620,209,961.39
  6. Step 6: Final answer
    x = 515,487,971.73

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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.