Home / 31,580,132.82-43,578,533.28-18,348,137.65

Finding the Fourth Proportional to 31,580,132.82, 43,578,533.28 and 18,348,137.65

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Solution

The fourth proportional to 31,580,132.82, 43,578,533.28 and 18,348,137.65 is: 25,319,238.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,580,132.82 : 43,578,533.28 = 18,348,137.65 : x
  2. Step 2: Convert to fraction form
    31,580,132.82/43,578,533.28 = 18,348,137.65/x
  3. Step 3: Cross multiply
    31,580,132.82x = 43,578,533.28 × 18,348,137.65
  4. Step 4: Simplify right side
    31,580,132.82x = 799,584,927,206,546
  5. Step 5: Solve for x
    x = 799,584,927,206,546/31,580,132.82
  6. Step 6: Final answer
    x = 25,319,238.90

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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.