Home / 18,105,786.40-27,158,679.60-8,539,848.40

Finding the Fourth Proportional to 18,105,786.40, 27,158,679.60 and 8,539,848.40

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Solution

The fourth proportional to 18,105,786.40, 27,158,679.60 and 8,539,848.40 is: 12,809,772.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,105,786.40 : 27,158,679.60 = 8,539,848.40 : x
  2. Step 2: Convert to fraction form
    18,105,786.40/27,158,679.60 = 8,539,848.40/x
  3. Step 3: Cross multiply
    18,105,786.40x = 27,158,679.60 × 8,539,848.40
  4. Step 4: Simplify right side
    18,105,786.40x = 231,931,006,528,172.66
  5. Step 5: Solve for x
    x = 231,931,006,528,172.66/18,105,786.40
  6. Step 6: Final answer
    x = 12,809,772.60

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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.