Home / 78,273,429.87-117,308,008.48-43,728,436.26

Finding the Fourth Proportional to 78,273,429.87, 117,308,008.48 and 43,728,436.26

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Solution

The fourth proportional to 78,273,429.87, 117,308,008.48 and 43,728,436.26 is: 65,535,594.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,273,429.87 : 117,308,008.48 = 43,728,436.26 : x
  2. Step 2: Convert to fraction form
    78,273,429.87/117,308,008.48 = 43,728,436.26/x
  3. Step 3: Cross multiply
    78,273,429.87x = 117,308,008.48 × 43,728,436.26
  4. Step 4: Simplify right side
    78,273,429.87x = 5,129,695,772,007,811
  5. Step 5: Solve for x
    x = 5,129,695,772,007,811/78,273,429.87
  6. Step 6: Final answer
    x = 65,535,594.66

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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.