Home / 13,072,178.72-18,039,347.79-7,270,835.60

Finding the Fourth Proportional to 13,072,178.72, 18,039,347.79 and 7,270,835.60

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Solution

The fourth proportional to 13,072,178.72, 18,039,347.79 and 7,270,835.60 is: 10,033,609.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,072,178.72 : 18,039,347.79 = 7,270,835.60 : x
  2. Step 2: Convert to fraction form
    13,072,178.72/18,039,347.79 = 7,270,835.60/x
  3. Step 3: Cross multiply
    13,072,178.72x = 18,039,347.79 × 7,270,835.60
  4. Step 4: Simplify right side
    13,072,178.72x = 131,161,132,112,313.31
  5. Step 5: Solve for x
    x = 131,161,132,112,313.31/13,072,178.72
  6. Step 6: Final answer
    x = 10,033,609.16

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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.