Home / 13,279,428.50-18,326,549.81-7,399,453.01

Finding the Fourth Proportional to 13,279,428.50, 18,326,549.81 and 7,399,453.01

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Solution

The fourth proportional to 13,279,428.50, 18,326,549.81 and 7,399,453.01 is: 10,211,768.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,279,428.50 : 18,326,549.81 = 7,399,453.01 : x
  2. Step 2: Convert to fraction form
    13,279,428.50/18,326,549.81 = 7,399,453.01/x
  3. Step 3: Cross multiply
    13,279,428.50x = 18,326,549.81 × 7,399,453.01
  4. Step 4: Simplify right side
    13,279,428.50x = 135,606,444,025,889.41
  5. Step 5: Solve for x
    x = 135,606,444,025,889.41/13,279,428.50
  6. Step 6: Final answer
    x = 10,211,768.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.