Home / 20,897,098.40-31,298,408.40-12,394,042.40

Finding the Fourth Proportional to 20,897,098.40, 31,298,408.40 and 12,394,042.40

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Solution

The fourth proportional to 20,897,098.40, 31,298,408.40 and 12,394,042.40 is: 18,563,046.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,897,098.40 : 31,298,408.40 = 12,394,042.40 : x
  2. Step 2: Convert to fraction form
    20,897,098.40/31,298,408.40 = 12,394,042.40/x
  3. Step 3: Cross multiply
    20,897,098.40x = 31,298,408.40 × 12,394,042.40
  4. Step 4: Simplify right side
    20,897,098.40x = 387,913,800,762,116.12
  5. Step 5: Solve for x
    x = 387,913,800,762,116.12/20,897,098.40
  6. Step 6: Final answer
    x = 18,563,046.09

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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.