Home / 18,539,995.20-27,809,992.80-5,076,801.60

Finding the Fourth Proportional to 18,539,995.20, 27,809,992.80 and 5,076,801.60

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Solution

The fourth proportional to 18,539,995.20, 27,809,992.80 and 5,076,801.60 is: 7,615,202.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,539,995.20 : 27,809,992.80 = 5,076,801.60 : x
  2. Step 2: Convert to fraction form
    18,539,995.20/27,809,992.80 = 5,076,801.60/x
  3. Step 3: Cross multiply
    18,539,995.20x = 27,809,992.80 × 5,076,801.60
  4. Step 4: Simplify right side
    18,539,995.20x = 141,185,815,943,028.47
  5. Step 5: Solve for x
    x = 141,185,815,943,028.47/18,539,995.20
  6. Step 6: Final answer
    x = 7,615,202.40

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Similar ratio
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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.