Home / 424,063,175.40-636,100,638.30-279,422,663.40

Finding the Fourth Proportional to 424,063,175.40, 636,100,638.30 and 279,422,663.40

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Solution

The fourth proportional to 424,063,175.40, 636,100,638.30 and 279,422,663.40 is: 419,137,866.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,063,175.40 : 636,100,638.30 = 279,422,663.40 : x
  2. Step 2: Convert to fraction form
    424,063,175.40/636,100,638.30 = 279,422,663.40/x
  3. Step 3: Cross multiply
    424,063,175.40x = 636,100,638.30 × 279,422,663.40
  4. Step 4: Simplify right side
    424,063,175.40x = 177,740,934,544,226,016
  5. Step 5: Solve for x
    x = 177,740,934,544,226,016/424,063,175.40
  6. Step 6: Final answer
    x = 419,137,866.37

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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.