Home / 12,904,636.88-19,370,406.96-5,721,215.48

Finding the Fourth Proportional to 12,904,636.88, 19,370,406.96 and 5,721,215.48

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Solution

The fourth proportional to 12,904,636.88, 19,370,406.96 and 5,721,215.48 is: 8,587,786.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,904,636.88 : 19,370,406.96 = 5,721,215.48 : x
  2. Step 2: Convert to fraction form
    12,904,636.88/19,370,406.96 = 5,721,215.48/x
  3. Step 3: Cross multiply
    12,904,636.88x = 19,370,406.96 × 5,721,215.48
  4. Step 4: Simplify right side
    12,904,636.88x = 110,822,272,153,451.75
  5. Step 5: Solve for x
    x = 110,822,272,153,451.75/12,904,636.88
  6. Step 6: Final answer
    x = 8,587,786.95

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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.