Home / 72,292,708.35-99,761,139.42-39,252,201.26

Finding the Fourth Proportional to 72,292,708.35, 99,761,139.42 and 39,252,201.26

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Solution

The fourth proportional to 72,292,708.35, 99,761,139.42 and 39,252,201.26 is: 54,166,518.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,292,708.35 : 99,761,139.42 = 39,252,201.26 : x
  2. Step 2: Convert to fraction form
    72,292,708.35/99,761,139.42 = 39,252,201.26/x
  3. Step 3: Cross multiply
    72,292,708.35x = 99,761,139.42 × 39,252,201.26
  4. Step 4: Simplify right side
    72,292,708.35x = 3,915,844,322,440,759.50
  5. Step 5: Solve for x
    x = 3,915,844,322,440,759.50/72,292,708.35
  6. Step 6: Final answer
    x = 54,166,518.47

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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.