Home / 8,778,121.12-12,113,824.86-4,910,706.76

Finding the Fourth Proportional to 8,778,121.12, 12,113,824.86 and 4,910,706.76

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Solution

The fourth proportional to 8,778,121.12, 12,113,824.86 and 4,910,706.76 is: 6,776,785.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,778,121.12 : 12,113,824.86 = 4,910,706.76 : x
  2. Step 2: Convert to fraction form
    8,778,121.12/12,113,824.86 = 4,910,706.76/x
  3. Step 3: Cross multiply
    8,778,121.12x = 12,113,824.86 × 4,910,706.76
  4. Step 4: Simplify right side
    8,778,121.12x = 59,487,441,629,458.05
  5. Step 5: Solve for x
    x = 59,487,441,629,458.05/8,778,121.12
  6. Step 6: Final answer
    x = 6,776,785.24

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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.