Home / 386,144,999.55-579,217,499.33-343,818,676.35

Finding the Fourth Proportional to 386,144,999.55, 579,217,499.33 and 343,818,676.35

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Solution

The fourth proportional to 386,144,999.55, 579,217,499.33 and 343,818,676.35 is: 515,728,014.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,144,999.55 : 579,217,499.33 = 343,818,676.35 : x
  2. Step 2: Convert to fraction form
    386,144,999.55/579,217,499.33 = 343,818,676.35/x
  3. Step 3: Cross multiply
    386,144,999.55x = 579,217,499.33 × 343,818,676.35
  4. Step 4: Simplify right side
    386,144,999.55x = 199,145,793,936,678,560
  5. Step 5: Solve for x
    x = 199,145,793,936,678,560/386,144,999.55
  6. Step 6: Final answer
    x = 515,728,014.53

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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.