Home / 12,170,156.87-16,794,820.44-6,663,880.68

Finding the Fourth Proportional to 12,170,156.87, 16,794,820.44 and 6,663,880.68

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Solution

The fourth proportional to 12,170,156.87, 16,794,820.44 and 6,663,880.68 is: 9,196,157.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,170,156.87 : 16,794,820.44 = 6,663,880.68 : x
  2. Step 2: Convert to fraction form
    12,170,156.87/16,794,820.44 = 6,663,880.68/x
  3. Step 3: Cross multiply
    12,170,156.87x = 16,794,820.44 × 6,663,880.68
  4. Step 4: Simplify right side
    12,170,156.87x = 111,918,679,454,185.11
  5. Step 5: Solve for x
    x = 111,918,679,454,185.11/12,170,156.87
  6. Step 6: Final answer
    x = 9,196,157.51

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1.5x scale

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.