Home / 2,778,218.40-4,167,327.60-2,181,021.60

Finding the Fourth Proportional to 2,778,218.40, 4,167,327.60 and 2,181,021.60

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Solution

The fourth proportional to 2,778,218.40, 4,167,327.60 and 2,181,021.60 is: 3,271,532.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778,218.40 : 4,167,327.60 = 2,181,021.60 : x
  2. Step 2: Convert to fraction form
    2,778,218.40/4,167,327.60 = 2,181,021.60/x
  3. Step 3: Cross multiply
    2,778,218.40x = 4,167,327.60 × 2,181,021.60
  4. Step 4: Simplify right side
    2,778,218.40x = 9,089,031,509,876.16
  5. Step 5: Solve for x
    x = 9,089,031,509,876.16/2,778,218.40
  6. Step 6: Final answer
    x = 3,271,532.40

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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.