Home / 18,219,828.71-25,143,359.81-9,959,925.17

Finding the Fourth Proportional to 18,219,828.71, 25,143,359.81 and 9,959,925.17

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Solution

The fourth proportional to 18,219,828.71, 25,143,359.81 and 9,959,925.17 is: 13,744,694.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,219,828.71 : 25,143,359.81 = 9,959,925.17 : x
  2. Step 2: Convert to fraction form
    18,219,828.71/25,143,359.81 = 9,959,925.17/x
  3. Step 3: Cross multiply
    18,219,828.71x = 25,143,359.81 × 9,959,925.17
  4. Step 4: Simplify right side
    18,219,828.71x = 250,425,982,054,468.97
  5. Step 5: Solve for x
    x = 250,425,982,054,468.97/18,219,828.71
  6. Step 6: Final answer
    x = 13,744,694.65

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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.