Home / 2,128,985.60-3,193,478.40-1,954,803.20

Finding the Fourth Proportional to 2,128,985.60, 3,193,478.40 and 1,954,803.20

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Solution

The fourth proportional to 2,128,985.60, 3,193,478.40 and 1,954,803.20 is: 2,932,204.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,985.60 : 3,193,478.40 = 1,954,803.20 : x
  2. Step 2: Convert to fraction form
    2,128,985.60/3,193,478.40 = 1,954,803.20/x
  3. Step 3: Cross multiply
    2,128,985.60x = 3,193,478.40 × 1,954,803.20
  4. Step 4: Simplify right side
    2,128,985.60x = 6,242,621,795,450.88
  5. Step 5: Solve for x
    x = 6,242,621,795,450.88/2,128,985.60
  6. Step 6: Final answer
    x = 2,932,204.80

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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.