Home / 1,889,206.20-2,831,966.10-1,690,140.60

Finding the Fourth Proportional to 1,889,206.20, 2,831,966.10 and 1,690,140.60

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Solution

The fourth proportional to 1,889,206.20, 2,831,966.10 and 1,690,140.60 is: 2,533,561.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889,206.20 : 2,831,966.10 = 1,690,140.60 : x
  2. Step 2: Convert to fraction form
    1,889,206.20/2,831,966.10 = 1,690,140.60/x
  3. Step 3: Cross multiply
    1,889,206.20x = 2,831,966.10 × 1,690,140.60
  4. Step 4: Simplify right side
    1,889,206.20x = 4,786,420,883,433.66
  5. Step 5: Solve for x
    x = 4,786,420,883,433.66/1,889,206.20
  6. Step 6: Final answer
    x = 2,533,561.92

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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.