Home / 18,386,195.45-25,371,072.05-11,320,666.70

Finding the Fourth Proportional to 18,386,195.45, 25,371,072.05 and 11,320,666.70

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Solution

The fourth proportional to 18,386,195.45, 25,371,072.05 and 11,320,666.70 is: 15,621,363.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,386,195.45 : 25,371,072.05 = 11,320,666.70 : x
  2. Step 2: Convert to fraction form
    18,386,195.45/25,371,072.05 = 11,320,666.70/x
  3. Step 3: Cross multiply
    18,386,195.45x = 25,371,072.05 × 11,320,666.70
  4. Step 4: Simplify right side
    18,386,195.45x = 287,217,450,316,277.06
  5. Step 5: Solve for x
    x = 287,217,450,316,277.06/18,386,195.45
  6. Step 6: Final answer
    x = 15,621,363.93

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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.