Home / 114,821,112.56-172,231,668.84-78,810,145.52

Finding the Fourth Proportional to 114,821,112.56, 172,231,668.84 and 78,810,145.52

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Solution

The fourth proportional to 114,821,112.56, 172,231,668.84 and 78,810,145.52 is: 118,215,218.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,821,112.56 : 172,231,668.84 = 78,810,145.52 : x
  2. Step 2: Convert to fraction form
    114,821,112.56/172,231,668.84 = 78,810,145.52/x
  3. Step 3: Cross multiply
    114,821,112.56x = 172,231,668.84 × 78,810,145.52
  4. Step 4: Simplify right side
    114,821,112.56x = 13,573,602,884,432,850
  5. Step 5: Solve for x
    x = 13,573,602,884,432,850/114,821,112.56
  6. Step 6: Final answer
    x = 118,215,218.28

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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.