Home / 30,571,237.26-42,172,227.72-18,172,511.64

Finding the Fourth Proportional to 30,571,237.26, 42,172,227.72 and 18,172,511.64

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Solution

The fourth proportional to 30,571,237.26, 42,172,227.72 and 18,172,511.64 is: 25,068,507.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,571,237.26 : 42,172,227.72 = 18,172,511.64 : x
  2. Step 2: Convert to fraction form
    30,571,237.26/42,172,227.72 = 18,172,511.64/x
  3. Step 3: Cross multiply
    30,571,237.26x = 42,172,227.72 × 18,172,511.64
  4. Step 4: Simplify right side
    30,571,237.26x = 766,375,299,126,430.62
  5. Step 5: Solve for x
    x = 766,375,299,126,430.62/30,571,237.26
  6. Step 6: Final answer
    x = 25,068,507.78

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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.