Home / 3,613,981.81-5,421,472.89-1,218,511.71

Finding the Fourth Proportional to 3,613,981.81, 5,421,472.89 and 1,218,511.71

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Solution

The fourth proportional to 3,613,981.81, 5,421,472.89 and 1,218,511.71 is: 1,827,936.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,613,981.81 : 5,421,472.89 = 1,218,511.71 : x
  2. Step 2: Convert to fraction form
    3,613,981.81/5,421,472.89 = 1,218,511.71/x
  3. Step 3: Cross multiply
    3,613,981.81x = 5,421,472.89 × 1,218,511.71
  4. Step 4: Simplify right side
    3,613,981.81x = 6,606,128,201,912.54
  5. Step 5: Solve for x
    x = 6,606,128,201,912.54/3,613,981.81
  6. Step 6: Final answer
    x = 1,827,936.21

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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.