Home / 20,402,930.35-30,564,537.45-12,291,812.09

Finding the Fourth Proportional to 20,402,930.35, 30,564,537.45 and 12,291,812.09

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Solution

The fourth proportional to 20,402,930.35, 30,564,537.45 and 12,291,812.09 is: 18,413,705.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,402,930.35 : 30,564,537.45 = 12,291,812.09 : x
  2. Step 2: Convert to fraction form
    20,402,930.35/30,564,537.45 = 12,291,812.09/x
  3. Step 3: Cross multiply
    20,402,930.35x = 30,564,537.45 × 12,291,812.09
  4. Step 4: Simplify right side
    20,402,930.35x = 375,693,550,953,167.75
  5. Step 5: Solve for x
    x = 375,693,550,953,167.75/20,402,930.35
  6. Step 6: Final answer
    x = 18,413,705.51

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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.