Home / 12,762,976.78-17,619,411.90-9,855,841.42

Finding the Fourth Proportional to 12,762,976.78, 17,619,411.90 and 9,855,841.42

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Solution

The fourth proportional to 12,762,976.78, 17,619,411.90 and 9,855,841.42 is: 13,606,083.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,762,976.78 : 17,619,411.90 = 9,855,841.42 : x
  2. Step 2: Convert to fraction form
    12,762,976.78/17,619,411.90 = 9,855,841.42/x
  3. Step 3: Cross multiply
    12,762,976.78x = 17,619,411.90 × 9,855,841.42
  4. Step 4: Simplify right side
    12,762,976.78x = 173,654,129,600,060.88
  5. Step 5: Solve for x
    x = 173,654,129,600,060.88/12,762,976.78
  6. Step 6: Final answer
    x = 13,606,083.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.