Home / 20,742,013.65-31,103,689.27-7,958,269.65

Finding the Fourth Proportional to 20,742,013.65, 31,103,689.27 and 7,958,269.65

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Solution

The fourth proportional to 20,742,013.65, 31,103,689.27 and 7,958,269.65 is: 11,933,824.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,742,013.65 : 31,103,689.27 = 7,958,269.65 : x
  2. Step 2: Convert to fraction form
    20,742,013.65/31,103,689.27 = 7,958,269.65/x
  3. Step 3: Cross multiply
    20,742,013.65x = 31,103,689.27 × 7,958,269.65
  4. Step 4: Simplify right side
    20,742,013.65x = 247,531,546,320,471.66
  5. Step 5: Solve for x
    x = 247,531,546,320,471.66/20,742,013.65
  6. Step 6: Final answer
    x = 11,933,824.29

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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.