Home / 8,188,688.72-12,284,607.72-3,139,605.56

Finding the Fourth Proportional to 8,188,688.72, 12,284,607.72 and 3,139,605.56

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Solution

The fourth proportional to 8,188,688.72, 12,284,607.72 and 3,139,605.56 is: 4,710,012.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,188,688.72 : 12,284,607.72 = 3,139,605.56 : x
  2. Step 2: Convert to fraction form
    8,188,688.72/12,284,607.72 = 3,139,605.56/x
  3. Step 3: Cross multiply
    8,188,688.72x = 12,284,607.72 × 3,139,605.56
  4. Step 4: Simplify right side
    8,188,688.72x = 38,568,822,742,615.97
  5. Step 5: Solve for x
    x = 38,568,822,742,615.97/8,188,688.72
  6. Step 6: Final answer
    x = 4,710,012.07

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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.