Home / 10,128,510.27-15,192,742.68-7,826,351.22

Finding the Fourth Proportional to 10,128,510.27, 15,192,742.68 and 7,826,351.22

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Solution

The fourth proportional to 10,128,510.27, 15,192,742.68 and 7,826,351.22 is: 11,739,509.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,128,510.27 : 15,192,742.68 = 7,826,351.22 : x
  2. Step 2: Convert to fraction form
    10,128,510.27/15,192,742.68 = 7,826,351.22/x
  3. Step 3: Cross multiply
    10,128,510.27x = 15,192,742.68 × 7,826,351.22
  4. Step 4: Simplify right side
    10,128,510.27x = 118,903,740,208,764.06
  5. Step 5: Solve for x
    x = 118,903,740,208,764.06/10,128,510.27
  6. Step 6: Final answer
    x = 11,739,509.27

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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.