Home / 13,100,953.62-18,079,080.82-7,140,414.07

Finding the Fourth Proportional to 13,100,953.62, 18,079,080.82 and 7,140,414.07

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Solution

The fourth proportional to 13,100,953.62, 18,079,080.82 and 7,140,414.07 is: 9,853,643.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,100,953.62 : 18,079,080.82 = 7,140,414.07 : x
  2. Step 2: Convert to fraction form
    13,100,953.62/18,079,080.82 = 7,140,414.07/x
  3. Step 3: Cross multiply
    13,100,953.62x = 18,079,080.82 × 7,140,414.07
  4. Step 4: Simplify right side
    13,100,953.62x = 129,092,122,996,746.39
  5. Step 5: Solve for x
    x = 129,092,122,996,746.39/13,100,953.62
  6. Step 6: Final answer
    x = 9,853,643.23

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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.