Home / 2,666,136.12-3,999,618.90-868,601.13

Finding the Fourth Proportional to 2,666,136.12, 3,999,618.90 and 868,601.13

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Solution

The fourth proportional to 2,666,136.12, 3,999,618.90 and 868,601.13 is: 1,303,036.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666,136.12 : 3,999,618.90 = 868,601.13 : x
  2. Step 2: Convert to fraction form
    2,666,136.12/3,999,618.90 = 868,601.13/x
  3. Step 3: Cross multiply
    2,666,136.12x = 3,999,618.90 × 868,601.13
  4. Step 4: Simplify right side
    2,666,136.12x = 3,474,073,496,109.36
  5. Step 5: Solve for x
    x = 3,474,073,496,109.36/2,666,136.12
  6. Step 6: Final answer
    x = 1,303,036.81

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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.