Home / 151,783,495.82-209,461,294.31-82,168,876.70

Finding the Fourth Proportional to 151,783,495.82, 209,461,294.31 and 82,168,876.70

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Solution

The fourth proportional to 151,783,495.82, 209,461,294.31 and 82,168,876.70 is: 113,393,087.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,783,495.82 : 209,461,294.31 = 82,168,876.70 : x
  2. Step 2: Convert to fraction form
    151,783,495.82/209,461,294.31 = 82,168,876.70/x
  3. Step 3: Cross multiply
    151,783,495.82x = 209,461,294.31 × 82,168,876.70
  4. Step 4: Simplify right side
    151,783,495.82x = 17,211,199,266,001,744
  5. Step 5: Solve for x
    x = 17,211,199,266,001,744/151,783,495.82
  6. Step 6: Final answer
    x = 113,393,087.79

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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.