Home / 17,817,137.28-26,716,996.80-12,428,369.28

Finding the Fourth Proportional to 17,817,137.28, 26,716,996.80 and 12,428,369.28

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Solution

The fourth proportional to 17,817,137.28, 26,716,996.80 and 12,428,369.28 is: 18,636,478.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,817,137.28 : 26,716,996.80 = 12,428,369.28 : x
  2. Step 2: Convert to fraction form
    17,817,137.28/26,716,996.80 = 12,428,369.28/x
  3. Step 3: Cross multiply
    17,817,137.28x = 26,716,996.80 × 12,428,369.28
  4. Step 4: Simplify right side
    17,817,137.28x = 332,048,702,282,978.31
  5. Step 5: Solve for x
    x = 332,048,702,282,978.31/17,817,137.28
  6. Step 6: Final answer
    x = 18,636,478.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.