Home / 13,833,115.20-20,749,672.80-6,642,915.30

Finding the Fourth Proportional to 13,833,115.20, 20,749,672.80 and 6,642,915.30

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Solution

The fourth proportional to 13,833,115.20, 20,749,672.80 and 6,642,915.30 is: 9,964,372.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,833,115.20 : 20,749,672.80 = 6,642,915.30 : x
  2. Step 2: Convert to fraction form
    13,833,115.20/20,749,672.80 = 6,642,915.30/x
  3. Step 3: Cross multiply
    13,833,115.20x = 20,749,672.80 × 6,642,915.30
  4. Step 4: Simplify right side
    13,833,115.20x = 137,838,318,913,113.84
  5. Step 5: Solve for x
    x = 137,838,318,913,113.84/13,833,115.20
  6. Step 6: Final answer
    x = 9,964,372.95

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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.