Home / 18,685,358.10-28,028,037.15-5,222,186.10

Finding the Fourth Proportional to 18,685,358.10, 28,028,037.15 and 5,222,186.10

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Solution

The fourth proportional to 18,685,358.10, 28,028,037.15 and 5,222,186.10 is: 7,833,279.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,685,358.10 : 28,028,037.15 = 5,222,186.10 : x
  2. Step 2: Convert to fraction form
    18,685,358.10/28,028,037.15 = 5,222,186.10/x
  3. Step 3: Cross multiply
    18,685,358.10x = 28,028,037.15 × 5,222,186.10
  4. Step 4: Simplify right side
    18,685,358.10x = 146,367,626,015,013.59
  5. Step 5: Solve for x
    x = 146,367,626,015,013.59/18,685,358.10
  6. Step 6: Final answer
    x = 7,833,279.15

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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.