Home / 9,205,406.28-12,708,909.90-8,183,989.80

Finding the Fourth Proportional to 9,205,406.28, 12,708,909.90 and 8,183,989.80

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Solution

The fourth proportional to 9,205,406.28, 12,708,909.90 and 8,183,989.80 is: 11,298,750.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,205,406.28 : 12,708,909.90 = 8,183,989.80 : x
  2. Step 2: Convert to fraction form
    9,205,406.28/12,708,909.90 = 8,183,989.80/x
  3. Step 3: Cross multiply
    9,205,406.28x = 12,708,909.90 × 8,183,989.80
  4. Step 4: Simplify right side
    9,205,406.28x = 104,009,588,990,719.02
  5. Step 5: Solve for x
    x = 104,009,588,990,719.02/9,205,406.28
  6. Step 6: Final answer
    x = 11,298,750.52

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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.