Home / 13,169,697.68-18,174,889.32-7,368,133.52

Finding the Fourth Proportional to 13,169,697.68, 18,174,889.32 and 7,368,133.52

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Solution

The fourth proportional to 13,169,697.68, 18,174,889.32 and 7,368,133.52 is: 10,168,419.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,169,697.68 : 18,174,889.32 = 7,368,133.52 : x
  2. Step 2: Convert to fraction form
    13,169,697.68/18,174,889.32 = 7,368,133.52/x
  3. Step 3: Cross multiply
    13,169,697.68x = 18,174,889.32 × 7,368,133.52
  4. Step 4: Simplify right side
    13,169,697.68x = 133,915,011,220,982
  5. Step 5: Solve for x
    x = 133,915,011,220,982/13,169,697.68
  6. Step 6: Final answer
    x = 10,168,419.54

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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.