Home / 27,558,339.68-38,011,146.60-18,136,128.69

Finding the Fourth Proportional to 27,558,339.68, 38,011,146.60 and 18,136,128.69

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Solution

The fourth proportional to 27,558,339.68, 38,011,146.60 and 18,136,128.69 is: 25,015,115.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,558,339.68 : 38,011,146.60 = 18,136,128.69 : x
  2. Step 2: Convert to fraction form
    27,558,339.68/38,011,146.60 = 18,136,128.69/x
  3. Step 3: Cross multiply
    27,558,339.68x = 38,011,146.60 × 18,136,128.69
  4. Step 4: Simplify right side
    27,558,339.68x = 689,375,046,358,050.88
  5. Step 5: Solve for x
    x = 689,375,046,358,050.88/27,558,339.68
  6. Step 6: Final answer
    x = 25,015,115.36

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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.