Home / 30,651,212.10-42,308,922.66-18,265,190.94

Finding the Fourth Proportional to 30,651,212.10, 42,308,922.66 and 18,265,190.94

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Solution

The fourth proportional to 30,651,212.10, 42,308,922.66 and 18,265,190.94 is: 25,212,071.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,651,212.10 : 42,308,922.66 = 18,265,190.94 : x
  2. Step 2: Convert to fraction form
    30,651,212.10/42,308,922.66 = 18,265,190.94/x
  3. Step 3: Cross multiply
    30,651,212.10x = 42,308,922.66 × 18,265,190.94
  4. Step 4: Simplify right side
    30,651,212.10x = 772,780,550,850,592.75
  5. Step 5: Solve for x
    x = 772,780,550,850,592.75/30,651,212.10
  6. Step 6: Final answer
    x = 25,212,071.49

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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.