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Finding the Fourth Proportional to 7,701,179.80, 11,551,769.70 and 2,021,978.20

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Solution

The fourth proportional to 7,701,179.80, 11,551,769.70 and 2,021,978.20 is: 3,032,967.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,701,179.80 : 11,551,769.70 = 2,021,978.20 : x
  2. Step 2: Convert to fraction form
    7,701,179.80/11,551,769.70 = 2,021,978.20/x
  3. Step 3: Cross multiply
    7,701,179.80x = 11,551,769.70 × 2,021,978.20
  4. Step 4: Simplify right side
    7,701,179.80x = 23,357,426,504,820.54
  5. Step 5: Solve for x
    x = 23,357,426,504,820.54/7,701,179.80
  6. Step 6: Final answer
    x = 3,032,967.30

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Double scale
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Similar ratio
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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.