Home / 13,204,665.92-19,812,700.32-7,143,666.88

Finding the Fourth Proportional to 13,204,665.92, 19,812,700.32 and 7,143,666.88

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Solution

The fourth proportional to 13,204,665.92, 19,812,700.32 and 7,143,666.88 is: 10,718,584.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,204,665.92 : 19,812,700.32 = 7,143,666.88 : x
  2. Step 2: Convert to fraction form
    13,204,665.92/19,812,700.32 = 7,143,666.88/x
  3. Step 3: Cross multiply
    13,204,665.92x = 19,812,700.32 × 7,143,666.88
  4. Step 4: Simplify right side
    13,204,665.92x = 141,535,331,079,349.41
  5. Step 5: Solve for x
    x = 141,535,331,079,349.41/13,204,665.92
  6. Step 6: Final answer
    x = 10,718,584.77

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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.