Home / 2,680,080.80-4,020,121.20-1,618,397.60

Finding the Fourth Proportional to 2,680,080.80, 4,020,121.20 and 1,618,397.60

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Solution

The fourth proportional to 2,680,080.80, 4,020,121.20 and 1,618,397.60 is: 2,427,596.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,680,080.80 : 4,020,121.20 = 1,618,397.60 : x
  2. Step 2: Convert to fraction form
    2,680,080.80/4,020,121.20 = 1,618,397.60/x
  3. Step 3: Cross multiply
    2,680,080.80x = 4,020,121.20 × 1,618,397.60
  4. Step 4: Simplify right side
    2,680,080.80x = 6,506,154,501,789.12
  5. Step 5: Solve for x
    x = 6,506,154,501,789.12/2,680,080.80
  6. Step 6: Final answer
    x = 2,427,596.40

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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.