Home / 8,180,345.12-11,309,283.60-6,139,611.68

Finding the Fourth Proportional to 8,180,345.12, 11,309,283.60 and 6,139,611.68

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Solution

The fourth proportional to 8,180,345.12, 11,309,283.60 and 6,139,611.68 is: 8,487,980.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,180,345.12 : 11,309,283.60 = 6,139,611.68 : x
  2. Step 2: Convert to fraction form
    8,180,345.12/11,309,283.60 = 6,139,611.68/x
  3. Step 3: Cross multiply
    8,180,345.12x = 11,309,283.60 × 6,139,611.68
  4. Step 4: Simplify right side
    8,180,345.12x = 69,434,609,682,992.45
  5. Step 5: Solve for x
    x = 69,434,609,682,992.45/8,180,345.12
  6. Step 6: Final answer
    x = 8,487,980.48

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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.