Home / 19,688,097.69-27,171,121.68-10,869,301.80

Finding the Fourth Proportional to 19,688,097.69, 27,171,121.68 and 10,869,301.80

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Solution

The fourth proportional to 19,688,097.69, 27,171,121.68 and 10,869,301.80 is: 15,000,490.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,688,097.69 : 27,171,121.68 = 10,869,301.80 : x
  2. Step 2: Convert to fraction form
    19,688,097.69/27,171,121.68 = 10,869,301.80/x
  3. Step 3: Cross multiply
    19,688,097.69x = 27,171,121.68 × 10,869,301.80
  4. Step 4: Simplify right side
    19,688,097.69x = 295,331,121,784,443.06
  5. Step 5: Solve for x
    x = 295,331,121,784,443.06/19,688,097.69
  6. Step 6: Final answer
    x = 15,000,490.47

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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.