Home / 66,420,009.20-99,648,676.20-32,342,466.80

Finding the Fourth Proportional to 66,420,009.20, 99,648,676.20 and 32,342,466.80

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Solution

The fourth proportional to 66,420,009.20, 99,648,676.20 and 32,342,466.80 is: 48,522,787.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,420,009.20 : 99,648,676.20 = 32,342,466.80 : x
  2. Step 2: Convert to fraction form
    66,420,009.20/99,648,676.20 = 32,342,466.80/x
  3. Step 3: Cross multiply
    66,420,009.20x = 99,648,676.20 × 32,342,466.80
  4. Step 4: Simplify right side
    66,420,009.20x = 3,222,884,001,662,450.50
  5. Step 5: Solve for x
    x = 3,222,884,001,662,450.50/66,420,009.20
  6. Step 6: Final answer
    x = 48,522,787.64

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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.