Home / 120,293,021.37-165,975,916.71-68,082,055.47

Finding the Fourth Proportional to 120,293,021.37, 165,975,916.71 and 68,082,055.47

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Solution

The fourth proportional to 120,293,021.37, 165,975,916.71 and 68,082,055.47 is: 93,937,133.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,293,021.37 : 165,975,916.71 = 68,082,055.47 : x
  2. Step 2: Convert to fraction form
    120,293,021.37/165,975,916.71 = 68,082,055.47/x
  3. Step 3: Cross multiply
    120,293,021.37x = 165,975,916.71 × 68,082,055.47
  4. Step 4: Simplify right side
    120,293,021.37x = 11,299,981,568,134,320
  5. Step 5: Solve for x
    x = 11,299,981,568,134,320/120,293,021.37
  6. Step 6: Final answer
    x = 93,937,133.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.