Home / 13,100,659.38-18,078,670.80-7,299,317.07

Finding the Fourth Proportional to 13,100,659.38, 18,078,670.80 and 7,299,317.07

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Solution

The fourth proportional to 13,100,659.38, 18,078,670.80 and 7,299,317.07 is: 10,072,924.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,100,659.38 : 18,078,670.80 = 7,299,317.07 : x
  2. Step 2: Convert to fraction form
    13,100,659.38/18,078,670.80 = 7,299,317.07/x
  3. Step 3: Cross multiply
    13,100,659.38x = 18,078,670.80 × 7,299,317.07
  4. Step 4: Simplify right side
    13,100,659.38x = 131,961,950,373,350.56
  5. Step 5: Solve for x
    x = 131,961,950,373,350.56/13,100,659.38
  6. Step 6: Final answer
    x = 10,072,924.31

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1.5x scale

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.