Home / 78,804,589.70-118,206,884.55-42,524,884.10

Finding the Fourth Proportional to 78,804,589.70, 118,206,884.55 and 42,524,884.10

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Solution

The fourth proportional to 78,804,589.70, 118,206,884.55 and 42,524,884.10 is: 63,787,326.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,804,589.70 : 118,206,884.55 = 42,524,884.10 : x
  2. Step 2: Convert to fraction form
    78,804,589.70/118,206,884.55 = 42,524,884.10/x
  3. Step 3: Cross multiply
    78,804,589.70x = 118,206,884.55 × 42,524,884.10
  4. Step 4: Simplify right side
    78,804,589.70x = 5,026,734,065,310,831
  5. Step 5: Solve for x
    x = 5,026,734,065,310,831/78,804,589.70
  6. Step 6: Final answer
    x = 63,787,326.15

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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.