Home / 20,805,763.60-31,208,645.40-10,728,067.60

Finding the Fourth Proportional to 20,805,763.60, 31,208,645.40 and 10,728,067.60

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Solution

The fourth proportional to 20,805,763.60, 31,208,645.40 and 10,728,067.60 is: 16,092,101.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,805,763.60 : 31,208,645.40 = 10,728,067.60 : x
  2. Step 2: Convert to fraction form
    20,805,763.60/31,208,645.40 = 10,728,067.60/x
  3. Step 3: Cross multiply
    20,805,763.60x = 31,208,645.40 × 10,728,067.60
  4. Step 4: Simplify right side
    20,805,763.60x = 334,808,457,555,629
  5. Step 5: Solve for x
    x = 334,808,457,555,629/20,805,763.60
  6. Step 6: Final answer
    x = 16,092,101.40

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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.