Home / 72,664,856.01-100,279,922.82-39,626,913.24

Finding the Fourth Proportional to 72,664,856.01, 100,279,922.82 and 39,626,913.24

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Solution

The fourth proportional to 72,664,856.01, 100,279,922.82 and 39,626,913.24 is: 54,686,460.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,664,856.01 : 100,279,922.82 = 39,626,913.24 : x
  2. Step 2: Convert to fraction form
    72,664,856.01/100,279,922.82 = 39,626,913.24/x
  3. Step 3: Cross multiply
    72,664,856.01x = 100,279,922.82 × 39,626,913.24
  4. Step 4: Simplify right side
    72,664,856.01x = 3,973,783,801,302,036
  5. Step 5: Solve for x
    x = 3,973,783,801,302,036/72,664,856.01
  6. Step 6: Final answer
    x = 54,686,460.82

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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.