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Finding the Fourth Proportional to 12,097,978.80, 18,146,579.40 and 4,011,327.60

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Solution

The fourth proportional to 12,097,978.80, 18,146,579.40 and 4,011,327.60 is: 6,016,862.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,097,978.80 : 18,146,579.40 = 4,011,327.60 : x
  2. Step 2: Convert to fraction form
    12,097,978.80/18,146,579.40 = 4,011,327.60/x
  3. Step 3: Cross multiply
    12,097,978.80x = 18,146,579.40 × 4,011,327.60
  4. Step 4: Simplify right side
    12,097,978.80x = 72,791,874,792,811.44
  5. Step 5: Solve for x
    x = 72,791,874,792,811.44/12,097,978.80
  6. Step 6: Final answer
    x = 6,016,862.49

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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.