Home / 30,571,239.76-42,172,231.17-18,172,514.14

Finding the Fourth Proportional to 30,571,239.76, 42,172,231.17 and 18,172,514.14

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Solution

The fourth proportional to 30,571,239.76, 42,172,231.17 and 18,172,514.14 is: 25,068,511.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,571,239.76 : 42,172,231.17 = 18,172,514.14 : x
  2. Step 2: Convert to fraction form
    30,571,239.76/42,172,231.17 = 18,172,514.14/x
  3. Step 3: Cross multiply
    30,571,239.76x = 42,172,231.17 × 18,172,514.14
  4. Step 4: Simplify right side
    30,571,239.76x = 766,375,467,252,173.75
  5. Step 5: Solve for x
    x = 766,375,467,252,173.75/30,571,239.76
  6. Step 6: Final answer
    x = 25,068,511.23

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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.