Home / 30,571,241.76-42,172,233.93-18,172,516.14

Finding the Fourth Proportional to 30,571,241.76, 42,172,233.93 and 18,172,516.14

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Solution

The fourth proportional to 30,571,241.76, 42,172,233.93 and 18,172,516.14 is: 25,068,513.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,571,241.76 : 42,172,233.93 = 18,172,516.14 : x
  2. Step 2: Convert to fraction form
    30,571,241.76/42,172,233.93 = 18,172,516.14/x
  3. Step 3: Cross multiply
    30,571,241.76x = 42,172,233.93 × 18,172,516.14
  4. Step 4: Simplify right side
    30,571,241.76x = 766,375,601,752,780.62
  5. Step 5: Solve for x
    x = 766,375,601,752,780.62/30,571,241.76
  6. Step 6: Final answer
    x = 25,068,513.99

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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.