Home / 122,735,131.52-169,378,068.94-66,984,130

Finding the Fourth Proportional to 122,735,131.52, 169,378,068.94 and 66,984,130

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Solution

The fourth proportional to 122,735,131.52, 169,378,068.94 and 66,984,130 is: 92,440,057.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,735,131.52 : 169,378,068.94 = 66,984,130 : x
  2. Step 2: Convert to fraction form
    122,735,131.52/169,378,068.94 = 66,984,130/x
  3. Step 3: Cross multiply
    122,735,131.52x = 169,378,068.94 × 66,984,130
  4. Step 4: Simplify right side
    122,735,131.52x = 11,345,642,589,025,922
  5. Step 5: Solve for x
    x = 11,345,642,589,025,922/122,735,131.52
  6. Step 6: Final answer
    x = 92,440,057.29

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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.