Home / 29,312,805.20-43,969,207.80-20,809,749.20

Finding the Fourth Proportional to 29,312,805.20, 43,969,207.80 and 20,809,749.20

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Solution

The fourth proportional to 29,312,805.20, 43,969,207.80 and 20,809,749.20 is: 31,214,623.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,312,805.20 : 43,969,207.80 = 20,809,749.20 : x
  2. Step 2: Convert to fraction form
    29,312,805.20/43,969,207.80 = 20,809,749.20/x
  3. Step 3: Cross multiply
    29,312,805.20x = 43,969,207.80 × 20,809,749.20
  4. Step 4: Simplify right side
    29,312,805.20x = 914,988,186,840,683.62
  5. Step 5: Solve for x
    x = 914,988,186,840,683.62/29,312,805.20
  6. Step 6: Final answer
    x = 31,214,623.80

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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.