Home / 72,065,855.39-108,101,772.63-20,947,874.19

Finding the Fourth Proportional to 72,065,855.39, 108,101,772.63 and 20,947,874.19

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Solution

The fourth proportional to 72,065,855.39, 108,101,772.63 and 20,947,874.19 is: 31,422,680.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,065,855.39 : 108,101,772.63 = 20,947,874.19 : x
  2. Step 2: Convert to fraction form
    72,065,855.39/108,101,772.63 = 20,947,874.19/x
  3. Step 3: Cross multiply
    72,065,855.39x = 108,101,772.63 × 20,947,874.19
  4. Step 4: Simplify right side
    72,065,855.39x = 2,264,502,332,769,225.50
  5. Step 5: Solve for x
    x = 2,264,502,332,769,225.50/72,065,855.39
  6. Step 6: Final answer
    x = 31,422,680.28

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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.