Home / 12,145,145.46-16,760,752.10-6,638,890.60

Finding the Fourth Proportional to 12,145,145.46, 16,760,752.10 and 6,638,890.60

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Solution

The fourth proportional to 12,145,145.46, 16,760,752.10 and 6,638,890.60 is: 9,161,915.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,145,145.46 : 16,760,752.10 = 6,638,890.60 : x
  2. Step 2: Convert to fraction form
    12,145,145.46/16,760,752.10 = 6,638,890.60/x
  3. Step 3: Cross multiply
    12,145,145.46x = 16,760,752.10 × 6,638,890.60
  4. Step 4: Simplify right side
    12,145,145.46x = 111,272,799,565,620.25
  5. Step 5: Solve for x
    x = 111,272,799,565,620.25/12,145,145.46
  6. Step 6: Final answer
    x = 9,161,915.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.