Home / 7,477,078.68-11,215,707.93-2,085,400.76

Finding the Fourth Proportional to 7,477,078.68, 11,215,707.93 and 2,085,400.76

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Solution

The fourth proportional to 7,477,078.68, 11,215,707.93 and 2,085,400.76 is: 3,128,126.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,477,078.68 : 11,215,707.93 = 2,085,400.76 : x
  2. Step 2: Convert to fraction form
    7,477,078.68/11,215,707.93 = 2,085,400.76/x
  3. Step 3: Cross multiply
    7,477,078.68x = 11,215,707.93 × 2,085,400.76
  4. Step 4: Simplify right side
    7,477,078.68x = 23,389,245,785,081.48
  5. Step 5: Solve for x
    x = 23,389,245,785,081.48/7,477,078.68
  6. Step 6: Final answer
    x = 3,128,126.21

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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.