Home / 13,407,884.16-18,501,372.78-7,900,901.52

Finding the Fourth Proportional to 13,407,884.16, 18,501,372.78 and 7,900,901.52

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Solution

The fourth proportional to 13,407,884.16, 18,501,372.78 and 7,900,901.52 is: 10,902,355.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,407,884.16 : 18,501,372.78 = 7,900,901.52 : x
  2. Step 2: Convert to fraction form
    13,407,884.16/18,501,372.78 = 7,900,901.52/x
  3. Step 3: Cross multiply
    13,407,884.16x = 18,501,372.78 × 7,900,901.52
  4. Step 4: Simplify right side
    13,407,884.16x = 146,177,524,319,588.62
  5. Step 5: Solve for x
    x = 146,177,524,319,588.62/13,407,884.16
  6. Step 6: Final answer
    x = 10,902,355.85

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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.