Home / 12,621,857.40-18,945,227.70-6,239,316.60

Finding the Fourth Proportional to 12,621,857.40, 18,945,227.70 and 6,239,316.60

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Solution

The fourth proportional to 12,621,857.40, 18,945,227.70 and 6,239,316.60 is: 9,365,125.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,621,857.40 : 18,945,227.70 = 6,239,316.60 : x
  2. Step 2: Convert to fraction form
    12,621,857.40/18,945,227.70 = 6,239,316.60/x
  3. Step 3: Cross multiply
    12,621,857.40x = 18,945,227.70 × 6,239,316.60
  4. Step 4: Simplify right side
    12,621,857.40x = 118,205,273,679,389.81
  5. Step 5: Solve for x
    x = 118,205,273,679,389.81/12,621,857.40
  6. Step 6: Final answer
    x = 9,365,125.11

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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.