Home / 151,731,718.80-209,390,403.03-82,117,093.53

Finding the Fourth Proportional to 151,731,718.80, 209,390,403.03 and 82,117,093.53

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Solution

The fourth proportional to 151,731,718.80, 209,390,403.03 and 82,117,093.53 is: 113,321,930.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,731,718.80 : 209,390,403.03 = 82,117,093.53 : x
  2. Step 2: Convert to fraction form
    151,731,718.80/209,390,403.03 = 82,117,093.53/x
  3. Step 3: Cross multiply
    151,731,718.80x = 209,390,403.03 × 82,117,093.53
  4. Step 4: Simplify right side
    151,731,718.80x = 17,194,531,309,898,906
  5. Step 5: Solve for x
    x = 17,194,531,309,898,906/151,731,718.80
  6. Step 6: Final answer
    x = 113,321,930.61

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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.