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Finding the Fourth Proportional to 6,398,878.93, 8,830,484.14 and 3,498,269.94

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Solution

The fourth proportional to 6,398,878.93, 8,830,484.14 and 3,498,269.94 is: 4,827,629.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,398,878.93 : 8,830,484.14 = 3,498,269.94 : x
  2. Step 2: Convert to fraction form
    6,398,878.93/8,830,484.14 = 3,498,269.94/x
  3. Step 3: Cross multiply
    6,398,878.93x = 8,830,484.14 × 3,498,269.94
  4. Step 4: Simplify right side
    6,398,878.93x = 30,891,417,220,422.33
  5. Step 5: Solve for x
    x = 30,891,417,220,422.33/6,398,878.93
  6. Step 6: Final answer
    x = 4,827,629.58

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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.