Home / 12,138,721.61-16,751,239.74-6,631,977.96

Finding the Fourth Proportional to 12,138,721.61, 16,751,239.74 and 6,631,977.96

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Solution

The fourth proportional to 12,138,721.61, 16,751,239.74 and 6,631,977.96 is: 9,152,022.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,138,721.61 : 16,751,239.74 = 6,631,977.96 : x
  2. Step 2: Convert to fraction form
    12,138,721.61/16,751,239.74 = 6,631,977.96/x
  3. Step 3: Cross multiply
    12,138,721.61x = 16,751,239.74 × 6,631,977.96
  4. Step 4: Simplify right side
    12,138,721.61x = 111,093,852,758,356.12
  5. Step 5: Solve for x
    x = 111,093,852,758,356.12/12,138,721.61
  6. Step 6: Final answer
    x = 9,152,022.46

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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.