Home / 190,090,082.67-285,255,067.27-80,915,075.47

Finding the Fourth Proportional to 190,090,082.67, 285,255,067.27 and 80,915,075.47

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Solution

The fourth proportional to 190,090,082.67, 285,255,067.27 and 80,915,075.47 is: 121,423,669.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,090,082.67 : 285,255,067.27 = 80,915,075.47 : x
  2. Step 2: Convert to fraction form
    190,090,082.67/285,255,067.27 = 80,915,075.47/x
  3. Step 3: Cross multiply
    190,090,082.67x = 285,255,067.27 × 80,915,075.47
  4. Step 4: Simplify right side
    190,090,082.67x = 23,081,435,296,351,976
  5. Step 5: Solve for x
    x = 23,081,435,296,351,976/190,090,082.67
  6. Step 6: Final answer
    x = 121,423,669.09

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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.