Home / 72,400,481.29-99,914,633.36-39,362,952.16

Finding the Fourth Proportional to 72,400,481.29, 99,914,633.36 and 39,362,952.16

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Solution

The fourth proportional to 72,400,481.29, 99,914,633.36 and 39,362,952.16 is: 54,321,944.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,400,481.29 : 99,914,633.36 = 39,362,952.16 : x
  2. Step 2: Convert to fraction form
    72,400,481.29/99,914,633.36 = 39,362,952.16/x
  3. Step 3: Cross multiply
    72,400,481.29x = 99,914,633.36 × 39,362,952.16
  4. Step 4: Simplify right side
    72,400,481.29x = 3,932,934,933,033,619.50
  5. Step 5: Solve for x
    x = 3,932,934,933,033,619.50/72,400,481.29
  6. Step 6: Final answer
    x = 54,321,944.59

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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.