Home / 77,305,607.20-116,013,734.64-28,121,365.43

Finding the Fourth Proportional to 77,305,607.20, 116,013,734.64 and 28,121,365.43

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Solution

The fourth proportional to 77,305,607.20, 116,013,734.64 and 28,121,365.43 is: 42,202,173.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,305,607.20 : 116,013,734.64 = 28,121,365.43 : x
  2. Step 2: Convert to fraction form
    77,305,607.20/116,013,734.64 = 28,121,365.43/x
  3. Step 3: Cross multiply
    77,305,607.20x = 116,013,734.64 × 28,121,365.43
  4. Step 4: Simplify right side
    77,305,607.20x = 3,262,464,627,218,049.50
  5. Step 5: Solve for x
    x = 3,262,464,627,218,049.50/77,305,607.20
  6. Step 6: Final answer
    x = 42,202,173.24

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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.