Home / 6,398,579.80-8,830,145.10-3,820,485.88

Finding the Fourth Proportional to 6,398,579.80, 8,830,145.10 and 3,820,485.88

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Solution

The fourth proportional to 6,398,579.80, 8,830,145.10 and 3,820,485.88 is: 5,272,333.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,398,579.80 : 8,830,145.10 = 3,820,485.88 : x
  2. Step 2: Convert to fraction form
    6,398,579.80/8,830,145.10 = 3,820,485.88/x
  3. Step 3: Cross multiply
    6,398,579.80x = 8,830,145.10 × 3,820,485.88
  4. Step 4: Simplify right side
    6,398,579.80x = 33,735,444,672,901.19
  5. Step 5: Solve for x
    x = 33,735,444,672,901.19/6,398,579.80
  6. Step 6: Final answer
    x = 5,272,333.19

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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.