Home / 137,835,449.22-206,628,033.01-68,769,376.86

Finding the Fourth Proportional to 137,835,449.22, 206,628,033.01 and 68,769,376.86

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Solution

The fourth proportional to 137,835,449.22, 206,628,033.01 and 68,769,376.86 is: 103,091,629.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,835,449.22 : 206,628,033.01 = 68,769,376.86 : x
  2. Step 2: Convert to fraction form
    137,835,449.22/206,628,033.01 = 68,769,376.86/x
  3. Step 3: Cross multiply
    137,835,449.22x = 206,628,033.01 × 68,769,376.86
  4. Step 4: Simplify right side
    137,835,449.22x = 14,209,681,072,766,026
  5. Step 5: Solve for x
    x = 14,209,681,072,766,026/137,835,449.22
  6. Step 6: Final answer
    x = 103,091,629.57

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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.