Home / 12,839,468.64-17,724,120.96-8,987,111.88

Finding the Fourth Proportional to 12,839,468.64, 17,724,120.96 and 8,987,111.88

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Solution

The fourth proportional to 12,839,468.64, 17,724,120.96 and 8,987,111.88 is: 12,406,172.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,839,468.64 : 17,724,120.96 = 8,987,111.88 : x
  2. Step 2: Convert to fraction form
    12,839,468.64/17,724,120.96 = 8,987,111.88/x
  3. Step 3: Cross multiply
    12,839,468.64x = 17,724,120.96 × 8,987,111.88
  4. Step 4: Simplify right side
    12,839,468.64x = 159,288,658,042,173.03
  5. Step 5: Solve for x
    x = 159,288,658,042,173.03/12,839,468.64
  6. Step 6: Final answer
    x = 12,406,172.13

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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.