Home / 101,188,977.12-139,640,835.42-54,779,231.01

Finding the Fourth Proportional to 101,188,977.12, 139,640,835.42 and 54,779,231.01

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Solution

The fourth proportional to 101,188,977.12, 139,640,835.42 and 54,779,231.01 is: 75,595,364.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,188,977.12 : 139,640,835.42 = 54,779,231.01 : x
  2. Step 2: Convert to fraction form
    101,188,977.12/139,640,835.42 = 54,779,231.01/x
  3. Step 3: Cross multiply
    101,188,977.12x = 139,640,835.42 × 54,779,231.01
  4. Step 4: Simplify right side
    101,188,977.12x = 7,649,417,581,901,569
  5. Step 5: Solve for x
    x = 7,649,417,581,901,569/101,188,977.12
  6. Step 6: Final answer
    x = 75,595,364.23

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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.