Home / 18,613,809.62-25,678,661.81-10,875,372.50

Finding the Fourth Proportional to 18,613,809.62, 25,678,661.81 and 10,875,372.50

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Solution

The fourth proportional to 18,613,809.62, 25,678,661.81 and 10,875,372.50 is: 15,003,108.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,613,809.62 : 25,678,661.81 = 10,875,372.50 : x
  2. Step 2: Convert to fraction form
    18,613,809.62/25,678,661.81 = 10,875,372.50/x
  3. Step 3: Cross multiply
    18,613,809.62x = 25,678,661.81 × 10,875,372.50
  4. Step 4: Simplify right side
    18,613,809.62x = 279,265,012,485,274.22
  5. Step 5: Solve for x
    x = 279,265,012,485,274.22/18,613,809.62
  6. Step 6: Final answer
    x = 15,003,108.88

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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.