Home / 12,220,968.60-18,351,036.90-9,717,442.20

Finding the Fourth Proportional to 12,220,968.60, 18,351,036.90 and 9,717,442.20

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Solution

The fourth proportional to 12,220,968.60, 18,351,036.90 and 9,717,442.20 is: 14,591,735.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,220,968.60 : 18,351,036.90 = 9,717,442.20 : x
  2. Step 2: Convert to fraction form
    12,220,968.60/18,351,036.90 = 9,717,442.20/x
  3. Step 3: Cross multiply
    12,220,968.60x = 18,351,036.90 × 9,717,442.20
  4. Step 4: Simplify right side
    12,220,968.60x = 178,325,140,385,817.16
  5. Step 5: Solve for x
    x = 178,325,140,385,817.16/12,220,968.60
  6. Step 6: Final answer
    x = 14,591,735.42

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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.