Home / 690,412,029.93-1,035,610,958.86-399,093,788.43

Finding the Fourth Proportional to 690,412,029.93, 1,035,610,958.86 and 399,093,788.43

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Solution

The fourth proportional to 690,412,029.93, 1,035,610,958.86 and 399,093,788.43 is: 598,636,586.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,412,029.93 : 1,035,610,958.86 = 399,093,788.43 : x
  2. Step 2: Convert to fraction form
    690,412,029.93/1,035,610,958.86 = 399,093,788.43/x
  3. Step 3: Cross multiply
    690,412,029.93x = 1,035,610,958.86 × 399,093,788.43
  4. Step 4: Simplify right side
    690,412,029.93x = 413,305,900,911,062,272
  5. Step 5: Solve for x
    x = 413,305,900,911,062,272/690,412,029.93
  6. Step 6: Final answer
    x = 598,636,586.55

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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.