Home / 12,612,651.29-18,921,014.64-5,327,206.30

Finding the Fourth Proportional to 12,612,651.29, 18,921,014.64 and 5,327,206.30

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Solution

The fourth proportional to 12,612,651.29, 18,921,014.64 and 5,327,206.30 is: 7,991,670.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,612,651.29 : 18,921,014.64 = 5,327,206.30 : x
  2. Step 2: Convert to fraction form
    12,612,651.29/18,921,014.64 = 5,327,206.30/x
  3. Step 3: Cross multiply
    12,612,651.29x = 18,921,014.64 × 5,327,206.30
  4. Step 4: Simplify right side
    12,612,651.29x = 100,796,148,399,328.53
  5. Step 5: Solve for x
    x = 100,796,148,399,328.53/12,612,651.29
  6. Step 6: Final answer
    x = 7,991,670.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.