Home / 12,129,166.65-18,189,321.30-4,042,406.10

Finding the Fourth Proportional to 12,129,166.65, 18,189,321.30 and 4,042,406.10

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Solution

The fourth proportional to 12,129,166.65, 18,189,321.30 and 4,042,406.10 is: 6,062,133.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,129,166.65 : 18,189,321.30 = 4,042,406.10 : x
  2. Step 2: Convert to fraction form
    12,129,166.65/18,189,321.30 = 4,042,406.10/x
  3. Step 3: Cross multiply
    12,129,166.65x = 18,189,321.30 × 4,042,406.10
  4. Step 4: Simplify right side
    12,129,166.65x = 73,528,623,377,979.94
  5. Step 5: Solve for x
    x = 73,528,623,377,979.94/12,129,166.65
  6. Step 6: Final answer
    x = 6,062,133.16

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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.