Home / 12,787,289.51-19,087,651.38-11,173,021.07

Finding the Fourth Proportional to 12,787,289.51, 19,087,651.38 and 11,173,021.07

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Solution

The fourth proportional to 12,787,289.51, 19,087,651.38 and 11,173,021.07 is: 16,678,024.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,787,289.51 : 19,087,651.38 = 11,173,021.07 : x
  2. Step 2: Convert to fraction form
    12,787,289.51/19,087,651.38 = 11,173,021.07/x
  3. Step 3: Cross multiply
    12,787,289.51x = 19,087,651.38 × 11,173,021.07
  4. Step 4: Simplify right side
    12,787,289.51x = 213,266,731,045,554.56
  5. Step 5: Solve for x
    x = 213,266,731,045,554.56/12,787,289.51
  6. Step 6: Final answer
    x = 16,678,024.76

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.