Home / 18,139,043.81-25,048,516.55-11,525,810.96

Finding the Fourth Proportional to 18,139,043.81, 25,048,516.55 and 11,525,810.96

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Solution

The fourth proportional to 18,139,043.81, 25,048,516.55 and 11,525,810.96 is: 15,916,189.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,139,043.81 : 25,048,516.55 = 11,525,810.96 : x
  2. Step 2: Convert to fraction form
    18,139,043.81/25,048,516.55 = 11,525,810.96/x
  3. Step 3: Cross multiply
    18,139,043.81x = 25,048,516.55 × 11,525,810.96
  4. Step 4: Simplify right side
    18,139,043.81x = 288,704,466,588,723.62
  5. Step 5: Solve for x
    x = 288,704,466,588,723.62/18,139,043.81
  6. Step 6: Final answer
    x = 15,916,189.94

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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.