Home / 11,578,980.78-15,979,002.30-6,422,379.30

Finding the Fourth Proportional to 11,578,980.78, 15,979,002.30 and 6,422,379.30

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Solution

The fourth proportional to 11,578,980.78, 15,979,002.30 and 6,422,379.30 is: 8,862,888.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,578,980.78 : 15,979,002.30 = 6,422,379.30 : x
  2. Step 2: Convert to fraction form
    11,578,980.78/15,979,002.30 = 6,422,379.30/x
  3. Step 3: Cross multiply
    11,578,980.78x = 15,979,002.30 × 6,422,379.30
  4. Step 4: Simplify right side
    11,578,980.78x = 102,623,213,606,172.39
  5. Step 5: Solve for x
    x = 102,623,213,606,172.39/11,578,980.78
  6. Step 6: Final answer
    x = 8,862,888.33

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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.