Home / 13,345,262.12-18,412,929.53-7,836,876.16

Finding the Fourth Proportional to 13,345,262.12, 18,412,929.53 and 7,836,876.16

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Solution

The fourth proportional to 13,345,262.12, 18,412,929.53 and 7,836,876.16 is: 10,812,814.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,345,262.12 : 18,412,929.53 = 7,836,876.16 : x
  2. Step 2: Convert to fraction form
    13,345,262.12/18,412,929.53 = 7,836,876.16/x
  3. Step 3: Cross multiply
    13,345,262.12x = 18,412,929.53 × 7,836,876.16
  4. Step 4: Simplify right side
    13,345,262.12x = 144,299,848,469,417.03
  5. Step 5: Solve for x
    x = 144,299,848,469,417.03/13,345,262.12
  6. Step 6: Final answer
    x = 10,812,814.85

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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.