Home / 20,801,542.40-31,202,313.60-13,999,097.60

Finding the Fourth Proportional to 20,801,542.40, 31,202,313.60 and 13,999,097.60

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Solution

The fourth proportional to 20,801,542.40, 31,202,313.60 and 13,999,097.60 is: 20,998,646.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,801,542.40 : 31,202,313.60 = 13,999,097.60 : x
  2. Step 2: Convert to fraction form
    20,801,542.40/31,202,313.60 = 13,999,097.60/x
  3. Step 3: Cross multiply
    20,801,542.40x = 31,202,313.60 × 13,999,097.60
  4. Step 4: Simplify right side
    20,801,542.40x = 436,804,233,432,207.38
  5. Step 5: Solve for x
    x = 436,804,233,432,207.38/20,801,542.40
  6. Step 6: Final answer
    x = 20,998,646.40

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1.5x scale

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.