Home / 10,128,516.27-15,192,751.68-7,826,357.22

Finding the Fourth Proportional to 10,128,516.27, 15,192,751.68 and 7,826,357.22

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Solution

The fourth proportional to 10,128,516.27, 15,192,751.68 and 7,826,357.22 is: 11,739,518.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,128,516.27 : 15,192,751.68 = 7,826,357.22 : x
  2. Step 2: Convert to fraction form
    10,128,516.27/15,192,751.68 = 7,826,357.22/x
  3. Step 3: Cross multiply
    10,128,516.27x = 15,192,751.68 × 7,826,357.22
  4. Step 4: Simplify right side
    10,128,516.27x = 118,903,901,802,435.12
  5. Step 5: Solve for x
    x = 118,903,901,802,435.12/10,128,516.27
  6. Step 6: Final answer
    x = 11,739,518.27

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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.