Home / 165,045,905.70-247,568,858.55-78,952,463.70

Finding the Fourth Proportional to 165,045,905.70, 247,568,858.55 and 78,952,463.70

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Solution

The fourth proportional to 165,045,905.70, 247,568,858.55 and 78,952,463.70 is: 118,428,695.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,045,905.70 : 247,568,858.55 = 78,952,463.70 : x
  2. Step 2: Convert to fraction form
    165,045,905.70/247,568,858.55 = 78,952,463.70/x
  3. Step 3: Cross multiply
    165,045,905.70x = 247,568,858.55 × 78,952,463.70
  4. Step 4: Simplify right side
    165,045,905.70x = 19,546,171,317,919,312
  5. Step 5: Solve for x
    x = 19,546,171,317,919,312/165,045,905.70
  6. Step 6: Final answer
    x = 118,428,695.55

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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.