Home / 424,097,912.80-636,146,869.20-343,476,344.80

Finding the Fourth Proportional to 424,097,912.80, 636,146,869.20 and 343,476,344.80

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Solution

The fourth proportional to 424,097,912.80, 636,146,869.20 and 343,476,344.80 is: 515,214,517.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,097,912.80 : 636,146,869.20 = 343,476,344.80 : x
  2. Step 2: Convert to fraction form
    424,097,912.80/636,146,869.20 = 343,476,344.80/x
  3. Step 3: Cross multiply
    424,097,912.80x = 636,146,869.20 × 343,476,344.80
  4. Step 4: Simplify right side
    424,097,912.80x = 218,501,401,388,779,712
  5. Step 5: Solve for x
    x = 218,501,401,388,779,712/424,097,912.80
  6. Step 6: Final answer
    x = 515,214,517.20

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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.