Home / 72,684,116.70-100,305,263.63-39,644,357.46

Finding the Fourth Proportional to 72,684,116.70, 100,305,263.63 and 39,644,357.46

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Solution

The fourth proportional to 72,684,116.70, 100,305,263.63 and 39,644,357.46 is: 54,709,858.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,684,116.70 : 100,305,263.63 = 39,644,357.46 : x
  2. Step 2: Convert to fraction form
    72,684,116.70/100,305,263.63 = 39,644,357.46/x
  3. Step 3: Cross multiply
    72,684,116.70x = 100,305,263.63 × 39,644,357.46
  4. Step 4: Simplify right side
    72,684,116.70x = 3,976,537,726,269,035.50
  5. Step 5: Solve for x
    x = 3,976,537,726,269,035.50/72,684,116.70
  6. Step 6: Final answer
    x = 54,709,858.31

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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.