Home / 18,478,261.94-25,501,578.45-10,742,813.78

Finding the Fourth Proportional to 18,478,261.94, 25,501,578.45 and 10,742,813.78

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Solution

The fourth proportional to 18,478,261.94, 25,501,578.45 and 10,742,813.78 is: 14,825,999.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,478,261.94 : 25,501,578.45 = 10,742,813.78 : x
  2. Step 2: Convert to fraction form
    18,478,261.94/25,501,578.45 = 10,742,813.78/x
  3. Step 3: Cross multiply
    18,478,261.94x = 25,501,578.45 × 10,742,813.78
  4. Step 4: Simplify right side
    18,478,261.94x = 273,958,708,384,411.03
  5. Step 5: Solve for x
    x = 273,958,708,384,411.03/18,478,261.94
  6. Step 6: Final answer
    x = 14,825,999.83

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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.