Home / 13,500,741.69-18,631,072.58-7,305,787.71

Finding the Fourth Proportional to 13,500,741.69, 18,631,072.58 and 7,305,787.71

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Solution

The fourth proportional to 13,500,741.69, 18,631,072.58 and 7,305,787.71 is: 10,082,013.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,500,741.69 : 18,631,072.58 = 7,305,787.71 : x
  2. Step 2: Convert to fraction form
    13,500,741.69/18,631,072.58 = 7,305,787.71/x
  3. Step 3: Cross multiply
    13,500,741.69x = 18,631,072.58 × 7,305,787.71
  4. Step 4: Simplify right side
    13,500,741.69x = 136,114,661,042,553.05
  5. Step 5: Solve for x
    x = 136,114,661,042,553.05/13,500,741.69
  6. Step 6: Final answer
    x = 10,082,013.58

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Double scale
Find fourth proportional to 13,500,742.69, 18,631,073.96 and 7,305,788.71
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1.5x scale

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.