Home / 72,801,139.37-100,467,747.97-39,762,947.08

Finding the Fourth Proportional to 72,801,139.37, 100,467,747.97 and 39,762,947.08

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Solution

The fourth proportional to 72,801,139.37, 100,467,747.97 and 39,762,947.08 is: 54,874,055.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,801,139.37 : 100,467,747.97 = 39,762,947.08 : x
  2. Step 2: Convert to fraction form
    72,801,139.37/100,467,747.97 = 39,762,947.08/x
  3. Step 3: Cross multiply
    72,801,139.37x = 100,467,747.97 × 39,762,947.08
  4. Step 4: Simplify right side
    72,801,139.37x = 3,994,893,745,804,064.50
  5. Step 5: Solve for x
    x = 3,994,893,745,804,064.50/72,801,139.37
  6. Step 6: Final answer
    x = 54,874,055.28

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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.