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Finding the Fourth Proportional to 7,728,561.60, 11,592,842.40 and 5,737,905.60

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Solution

The fourth proportional to 7,728,561.60, 11,592,842.40 and 5,737,905.60 is: 8,606,858.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,728,561.60 : 11,592,842.40 = 5,737,905.60 : x
  2. Step 2: Convert to fraction form
    7,728,561.60/11,592,842.40 = 5,737,905.60/x
  3. Step 3: Cross multiply
    7,728,561.60x = 11,592,842.40 × 5,737,905.60
  4. Step 4: Simplify right side
    7,728,561.60x = 66,518,635,326,877.44
  5. Step 5: Solve for x
    x = 66,518,635,326,877.44/7,728,561.60
  6. Step 6: Final answer
    x = 8,606,858.40

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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.