Home / 12,369,117.96-18,554,260.14-10,206,131.22

Finding the Fourth Proportional to 12,369,117.96, 18,554,260.14 and 10,206,131.22

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Solution

The fourth proportional to 12,369,117.96, 18,554,260.14 and 10,206,131.22 is: 15,309,678.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,369,117.96 : 18,554,260.14 = 10,206,131.22 : x
  2. Step 2: Convert to fraction form
    12,369,117.96/18,554,260.14 = 10,206,131.22/x
  3. Step 3: Cross multiply
    12,369,117.96x = 18,554,260.14 × 10,206,131.22
  4. Step 4: Simplify right side
    12,369,117.96x = 189,367,213,678,855.59
  5. Step 5: Solve for x
    x = 189,367,213,678,855.59/12,369,117.96
  6. Step 6: Final answer
    x = 15,309,678.05

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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.