Home / 12,293,718.70-18,428,136.45-7,242,429.10

Finding the Fourth Proportional to 12,293,718.70, 18,428,136.45 and 7,242,429.10

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Solution

The fourth proportional to 12,293,718.70, 18,428,136.45 and 7,242,429.10 is: 10,856,314.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,293,718.70 : 18,428,136.45 = 7,242,429.10 : x
  2. Step 2: Convert to fraction form
    12,293,718.70/18,428,136.45 = 7,242,429.10/x
  3. Step 3: Cross multiply
    12,293,718.70x = 18,428,136.45 × 7,242,429.10
  4. Step 4: Simplify right side
    12,293,718.70x = 133,464,471,684,250.69
  5. Step 5: Solve for x
    x = 133,464,471,684,250.69/12,293,718.70
  6. Step 6: Final answer
    x = 10,856,314.10

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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.