Home / 8,778,919.23-12,115,379.16-4,911,209.73

Finding the Fourth Proportional to 8,778,919.23, 12,115,379.16 and 4,911,209.73

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Solution

The fourth proportional to 8,778,919.23, 12,115,379.16 and 4,911,209.73 is: 6,777,732.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,778,919.23 : 12,115,379.16 = 4,911,209.73 : x
  2. Step 2: Convert to fraction form
    8,778,919.23/12,115,379.16 = 4,911,209.73/x
  3. Step 3: Cross multiply
    8,778,919.23x = 12,115,379.16 × 4,911,209.73
  4. Step 4: Simplify right side
    8,778,919.23x = 59,501,168,013,231.23
  5. Step 5: Solve for x
    x = 59,501,168,013,231.23/8,778,919.23
  6. Step 6: Final answer
    x = 6,777,732.71

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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.