Home / 78,116,470.88-117,092,682.30-26,283,079.58

Finding the Fourth Proportional to 78,116,470.88, 117,092,682.30 and 26,283,079.58

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Solution

The fourth proportional to 78,116,470.88, 117,092,682.30 and 26,283,079.58 is: 39,397,021.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,116,470.88 : 117,092,682.30 = 26,283,079.58 : x
  2. Step 2: Convert to fraction form
    78,116,470.88/117,092,682.30 = 26,283,079.58/x
  3. Step 3: Cross multiply
    78,116,470.88x = 117,092,682.30 × 26,283,079.58
  4. Step 4: Simplify right side
    78,116,470.88x = 3,077,556,287,126,557
  5. Step 5: Solve for x
    x = 3,077,556,287,126,557/78,116,470.88
  6. Step 6: Final answer
    x = 39,397,021.56

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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.