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Finding the Fourth Proportional to 6,445,694.40, 9,668,541.60 and 1,957,387.20

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Solution

The fourth proportional to 6,445,694.40, 9,668,541.60 and 1,957,387.20 is: 2,936,080.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,445,694.40 : 9,668,541.60 = 1,957,387.20 : x
  2. Step 2: Convert to fraction form
    6,445,694.40/9,668,541.60 = 1,957,387.20/x
  3. Step 3: Cross multiply
    6,445,694.40x = 9,668,541.60 × 1,957,387.20
  4. Step 4: Simplify right side
    6,445,694.40x = 18,925,079,570,507.52
  5. Step 5: Solve for x
    x = 18,925,079,570,507.52/6,445,694.40
  6. Step 6: Final answer
    x = 2,936,080.80

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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.