Home / 12,875,575.42-17,763,899.57-7,979,010.90

Finding the Fourth Proportional to 12,875,575.42, 17,763,899.57 and 7,979,010.90

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Solution

The fourth proportional to 12,875,575.42, 17,763,899.57 and 7,979,010.90 is: 11,008,311.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,875,575.42 : 17,763,899.57 = 7,979,010.90 : x
  2. Step 2: Convert to fraction form
    12,875,575.42/17,763,899.57 = 7,979,010.90/x
  3. Step 3: Cross multiply
    12,875,575.42x = 17,763,899.57 × 7,979,010.90
  4. Step 4: Simplify right side
    12,875,575.42x = 141,738,348,295,535.31
  5. Step 5: Solve for x
    x = 141,738,348,295,535.31/12,875,575.42
  6. Step 6: Final answer
    x = 11,008,311.76

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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.