Home / 13,500,742.69-18,631,073.96-7,305,788.71

Finding the Fourth Proportional to 13,500,742.69, 18,631,073.96 and 7,305,788.71

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Solution

The fourth proportional to 13,500,742.69, 18,631,073.96 and 7,305,788.71 is: 10,082,014.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,500,742.69 : 18,631,073.96 = 7,305,788.71 : x
  2. Step 2: Convert to fraction form
    13,500,742.69/18,631,073.96 = 7,305,788.71/x
  3. Step 3: Cross multiply
    13,500,742.69x = 18,631,073.96 × 7,305,788.71
  4. Step 4: Simplify right side
    13,500,742.69x = 136,114,689,792,143
  5. Step 5: Solve for x
    x = 136,114,689,792,143/13,500,742.69
  6. Step 6: Final answer
    x = 10,082,014.96

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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.