Home / 20,805,902.60-31,208,853.90-19,546,190.60

Finding the Fourth Proportional to 20,805,902.60, 31,208,853.90 and 19,546,190.60

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Solution

The fourth proportional to 20,805,902.60, 31,208,853.90 and 19,546,190.60 is: 29,319,285.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,805,902.60 : 31,208,853.90 = 19,546,190.60 : x
  2. Step 2: Convert to fraction form
    20,805,902.60/31,208,853.90 = 19,546,190.60/x
  3. Step 3: Cross multiply
    20,805,902.60x = 31,208,853.90 × 19,546,190.60
  4. Step 4: Simplify right side
    20,805,902.60x = 610,014,206,736,953.38
  5. Step 5: Solve for x
    x = 610,014,206,736,953.38/20,805,902.60
  6. Step 6: Final answer
    x = 29,319,285.90

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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.