Home / 78,617,221.77-108,496,619.97-43,334,947.30

Finding the Fourth Proportional to 78,617,221.77, 108,496,619.97 and 43,334,947.30

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Solution

The fourth proportional to 78,617,221.77, 108,496,619.97 and 43,334,947.30 is: 59,804,902.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,617,221.77 : 108,496,619.97 = 43,334,947.30 : x
  2. Step 2: Convert to fraction form
    78,617,221.77/108,496,619.97 = 43,334,947.30/x
  3. Step 3: Cross multiply
    78,617,221.77x = 108,496,619.97 × 43,334,947.30
  4. Step 4: Simplify right side
    78,617,221.77x = 4,701,695,308,628,077
  5. Step 5: Solve for x
    x = 4,701,695,308,628,077/78,617,221.77
  6. Step 6: Final answer
    x = 59,804,902.83

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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.