Home / 12,555,428.70-18,833,143.05-6,178,136.70

Finding the Fourth Proportional to 12,555,428.70, 18,833,143.05 and 6,178,136.70

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Solution

The fourth proportional to 12,555,428.70, 18,833,143.05 and 6,178,136.70 is: 9,267,205.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,555,428.70 : 18,833,143.05 = 6,178,136.70 : x
  2. Step 2: Convert to fraction form
    12,555,428.70/18,833,143.05 = 6,178,136.70/x
  3. Step 3: Cross multiply
    12,555,428.70x = 18,833,143.05 × 6,178,136.70
  4. Step 4: Simplify right side
    12,555,428.70x = 116,353,732,253,554.94
  5. Step 5: Solve for x
    x = 116,353,732,253,554.94/12,555,428.70
  6. Step 6: Final answer
    x = 9,267,205.05

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