Home / 13,680,462.09-18,879,027.66-7,485,549.48

Finding the Fourth Proportional to 13,680,462.09, 18,879,027.66 and 7,485,549.48

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Solution

The fourth proportional to 13,680,462.09, 18,879,027.66 and 7,485,549.48 is: 10,330,052.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,680,462.09 : 18,879,027.66 = 7,485,549.48 : x
  2. Step 2: Convert to fraction form
    13,680,462.09/18,879,027.66 = 7,485,549.48/x
  3. Step 3: Cross multiply
    13,680,462.09x = 18,879,027.66 × 7,485,549.48
  4. Step 4: Simplify right side
    13,680,462.09x = 141,319,895,588,823.47
  5. Step 5: Solve for x
    x = 141,319,895,588,823.47/13,680,462.09
  6. Step 6: Final answer
    x = 10,330,052.79

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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.