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Finding the Fourth Proportional to 6,398,880.87, 8,830,486.81 and 3,498,271.88

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Solution

The fourth proportional to 6,398,880.87, 8,830,486.81 and 3,498,271.88 is: 4,827,632.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,398,880.87 : 8,830,486.81 = 3,498,271.88 : x
  2. Step 2: Convert to fraction form
    6,398,880.87/8,830,486.81 = 3,498,271.88/x
  3. Step 3: Cross multiply
    6,398,880.87x = 8,830,486.81 × 3,498,271.88
  4. Step 4: Simplify right side
    6,398,880.87x = 30,891,443,694,133.90
  5. Step 5: Solve for x
    x = 30,891,443,694,133.90/6,398,880.87
  6. Step 6: Final answer
    x = 4,827,632.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.