Home / 72,505,896-100,060,776.80-39,464,548.16

Finding the Fourth Proportional to 72,505,896, 100,060,776.80 and 39,464,548.16

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Solution

The fourth proportional to 72,505,896, 100,060,776.80 and 39,464,548.16 is: 54,462,513.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,505,896 : 100,060,776.80 = 39,464,548.16 : x
  2. Step 2: Convert to fraction form
    72,505,896/100,060,776.80 = 39,464,548.16/x
  3. Step 3: Cross multiply
    72,505,896x = 100,060,776.80 × 39,464,548.16
  4. Step 4: Simplify right side
    72,505,896x = 3,948,853,344,950,610
  5. Step 5: Solve for x
    x = 3,948,853,344,950,610/72,505,896
  6. Step 6: Final answer
    x = 54,462,513.57

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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.