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Finding the Fourth Proportional to 6,397,642.66, 8,828,503.05 and 3,497,008.90

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Solution

The fourth proportional to 6,397,642.66, 8,828,503.05 and 3,497,008.90 is: 4,825,739.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,397,642.66 : 8,828,503.05 = 3,497,008.90 : x
  2. Step 2: Convert to fraction form
    6,397,642.66/8,828,503.05 = 3,497,008.90/x
  3. Step 3: Cross multiply
    6,397,642.66x = 8,828,503.05 × 3,497,008.90
  4. Step 4: Simplify right side
    6,397,642.66x = 30,873,353,739,527.15
  5. Step 5: Solve for x
    x = 30,873,353,739,527.15/6,397,642.66
  6. Step 6: Final answer
    x = 4,825,739.01

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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.