Home / 20,853,403.60-31,280,105.40-19,436,227.60

Finding the Fourth Proportional to 20,853,403.60, 31,280,105.40 and 19,436,227.60

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Solution

The fourth proportional to 20,853,403.60, 31,280,105.40 and 19,436,227.60 is: 29,154,341.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,853,403.60 : 31,280,105.40 = 19,436,227.60 : x
  2. Step 2: Convert to fraction form
    20,853,403.60/31,280,105.40 = 19,436,227.60/x
  3. Step 3: Cross multiply
    20,853,403.60x = 31,280,105.40 × 19,436,227.60
  4. Step 4: Simplify right side
    20,853,403.60x = 607,967,247,906,389
  5. Step 5: Solve for x
    x = 607,967,247,906,389/20,853,403.60
  6. Step 6: Final answer
    x = 29,154,341.40

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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.