Home / 13,183,442.40-19,789,909.20-12,317,138.40

Finding the Fourth Proportional to 13,183,442.40, 19,789,909.20 and 12,317,138.40

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Solution

The fourth proportional to 13,183,442.40, 19,789,909.20 and 12,317,138.40 is: 18,489,484.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,183,442.40 : 19,789,909.20 = 12,317,138.40 : x
  2. Step 2: Convert to fraction form
    13,183,442.40/19,789,909.20 = 12,317,138.40/x
  3. Step 3: Cross multiply
    13,183,442.40x = 19,789,909.20 × 12,317,138.40
  4. Step 4: Simplify right side
    13,183,442.40x = 243,755,050,539,833.28
  5. Step 5: Solve for x
    x = 243,755,050,539,833.28/13,183,442.40
  6. Step 6: Final answer
    x = 18,489,484.24

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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.