Home / 13,520,122-18,657,768.36-7,796,986

Finding the Fourth Proportional to 13,520,122, 18,657,768.36 and 7,796,986

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Solution

The fourth proportional to 13,520,122, 18,657,768.36 and 7,796,986 is: 10,759,840.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,520,122 : 18,657,768.36 = 7,796,986 : x
  2. Step 2: Convert to fraction form
    13,520,122/18,657,768.36 = 7,796,986/x
  3. Step 3: Cross multiply
    13,520,122x = 18,657,768.36 × 7,796,986
  4. Step 4: Simplify right side
    13,520,122x = 145,474,358,694,162.97
  5. Step 5: Solve for x
    x = 145,474,358,694,162.97/13,520,122
  6. Step 6: Final answer
    x = 10,759,840.68

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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.