Home / 78,857,513.80-118,286,270.70-25,004,825.80

Finding the Fourth Proportional to 78,857,513.80, 118,286,270.70 and 25,004,825.80

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Solution

The fourth proportional to 78,857,513.80, 118,286,270.70 and 25,004,825.80 is: 37,507,238.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,857,513.80 : 118,286,270.70 = 25,004,825.80 : x
  2. Step 2: Convert to fraction form
    78,857,513.80/118,286,270.70 = 25,004,825.80/x
  3. Step 3: Cross multiply
    78,857,513.80x = 118,286,270.70 × 25,004,825.80
  4. Step 4: Simplify right side
    78,857,513.80x = 2,957,727,593,385,144
  5. Step 5: Solve for x
    x = 2,957,727,593,385,144/78,857,513.80
  6. Step 6: Final answer
    x = 37,507,238.70

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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.