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Finding the Fourth Proportional to 18,168,804, 27,239,753.52 and 10,978,654.32

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Solution

The fourth proportional to 18,168,804, 27,239,753.52 and 10,978,654.32 is: 16,459,852.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,168,804 : 27,239,753.52 = 10,978,654.32 : x
  2. Step 2: Convert to fraction form
    18,168,804/27,239,753.52 = 10,978,654.32/x
  3. Step 3: Cross multiply
    18,168,804x = 27,239,753.52 × 10,978,654.32
  4. Step 4: Simplify right side
    18,168,804x = 299,055,837,658,083.19
  5. Step 5: Solve for x
    x = 299,055,837,658,083.19/18,168,804
  6. Step 6: Final answer
    x = 16,459,852.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.