Home / 20,191,963.80-30,287,945.70-17,959,911.60

Finding the Fourth Proportional to 20,191,963.80, 30,287,945.70 and 17,959,911.60

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Solution

The fourth proportional to 20,191,963.80, 30,287,945.70 and 17,959,911.60 is: 26,939,867.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,191,963.80 : 30,287,945.70 = 17,959,911.60 : x
  2. Step 2: Convert to fraction form
    20,191,963.80/30,287,945.70 = 17,959,911.60/x
  3. Step 3: Cross multiply
    20,191,963.80x = 30,287,945.70 × 17,959,911.60
  4. Step 4: Simplify right side
    20,191,963.80x = 543,968,827,317,600.12
  5. Step 5: Solve for x
    x = 543,968,827,317,600.12/20,191,963.80
  6. Step 6: Final answer
    x = 26,939,867.40

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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.