Home / 18,681,841.35-28,021,765.12-5,034,768.77

Finding the Fourth Proportional to 18,681,841.35, 28,021,765.12 and 5,034,768.77

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Solution

The fourth proportional to 18,681,841.35, 28,021,765.12 and 5,034,768.77 is: 7,551,884.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,681,841.35 : 28,021,765.12 = 5,034,768.77 : x
  2. Step 2: Convert to fraction form
    18,681,841.35/28,021,765.12 = 5,034,768.77/x
  3. Step 3: Cross multiply
    18,681,841.35x = 28,021,765.12 × 5,034,768.77
  4. Step 4: Simplify right side
    18,681,841.35x = 141,083,107,963,918.78
  5. Step 5: Solve for x
    x = 141,083,107,963,918.78/18,681,841.35
  6. Step 6: Final answer
    x = 7,551,884.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.