Home / 12,661,642.78-17,473,073.61-6,860,429.08

Finding the Fourth Proportional to 12,661,642.78, 17,473,073.61 and 6,860,429.08

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Solution

The fourth proportional to 12,661,642.78, 17,473,073.61 and 6,860,429.08 is: 9,467,395.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,661,642.78 : 17,473,073.61 = 6,860,429.08 : x
  2. Step 2: Convert to fraction form
    12,661,642.78/17,473,073.61 = 6,860,429.08/x
  3. Step 3: Cross multiply
    12,661,642.78x = 17,473,073.61 × 6,860,429.08
  4. Step 4: Simplify right side
    12,661,642.78x = 119,872,782,311,024.58
  5. Step 5: Solve for x
    x = 119,872,782,311,024.58/12,661,642.78
  6. Step 6: Final answer
    x = 9,467,395.69

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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.