Home / 72,907,619.70-109,361,429.55-67,364,886.90

Finding the Fourth Proportional to 72,907,619.70, 109,361,429.55 and 67,364,886.90

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Solution

The fourth proportional to 72,907,619.70, 109,361,429.55 and 67,364,886.90 is: 101,047,330.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,907,619.70 : 109,361,429.55 = 67,364,886.90 : x
  2. Step 2: Convert to fraction form
    72,907,619.70/109,361,429.55 = 67,364,886.90/x
  3. Step 3: Cross multiply
    72,907,619.70x = 109,361,429.55 × 67,364,886.90
  4. Step 4: Simplify right side
    72,907,619.70x = 7,367,120,332,858,068
  5. Step 5: Solve for x
    x = 7,367,120,332,858,068/72,907,619.70
  6. Step 6: Final answer
    x = 101,047,330.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.