Home / 2,919,206.80-4,378,810.20-2,116,723.60

Finding the Fourth Proportional to 2,919,206.80, 4,378,810.20 and 2,116,723.60

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Solution

The fourth proportional to 2,919,206.80, 4,378,810.20 and 2,116,723.60 is: 3,175,085.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919,206.80 : 4,378,810.20 = 2,116,723.60 : x
  2. Step 2: Convert to fraction form
    2,919,206.80/4,378,810.20 = 2,116,723.60/x
  3. Step 3: Cross multiply
    2,919,206.80x = 4,378,810.20 × 2,116,723.60
  4. Step 4: Simplify right side
    2,919,206.80x = 9,268,730,890,260.72
  5. Step 5: Solve for x
    x = 9,268,730,890,260.72/2,919,206.80
  6. Step 6: Final answer
    x = 3,175,085.40

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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.