Home / 101,188,972.40-139,640,828.93-54,779,226.32

Finding the Fourth Proportional to 101,188,972.40, 139,640,828.93 and 54,779,226.32

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Solution

The fourth proportional to 101,188,972.40, 139,640,828.93 and 54,779,226.32 is: 75,595,357.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,188,972.40 : 139,640,828.93 = 54,779,226.32 : x
  2. Step 2: Convert to fraction form
    101,188,972.40/139,640,828.93 = 54,779,226.32/x
  3. Step 3: Cross multiply
    101,188,972.40x = 139,640,828.93 × 54,779,226.32
  4. Step 4: Simplify right side
    101,188,972.40x = 7,649,416,571,749,502
  5. Step 5: Solve for x
    x = 7,649,416,571,749,502/101,188,972.40
  6. Step 6: Final answer
    x = 75,595,357.78

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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.