Home / 12,432,905.10-18,651,879.90-3,911,259.60

Finding the Fourth Proportional to 12,432,905.10, 18,651,879.90 and 3,911,259.60

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Solution

The fourth proportional to 12,432,905.10, 18,651,879.90 and 3,911,259.60 is: 5,867,682.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,432,905.10 : 18,651,879.90 = 3,911,259.60 : x
  2. Step 2: Convert to fraction form
    12,432,905.10/18,651,879.90 = 3,911,259.60/x
  3. Step 3: Cross multiply
    12,432,905.10x = 18,651,879.90 × 3,911,259.60
  4. Step 4: Simplify right side
    12,432,905.10x = 72,952,344,316,922.03
  5. Step 5: Solve for x
    x = 72,952,344,316,922.03/12,432,905.10
  6. Step 6: Final answer
    x = 5,867,682.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.