Home / 78,502,628.88-108,333,633.06-43,694,572.32

Finding the Fourth Proportional to 78,502,628.88, 108,333,633.06 and 43,694,572.32

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Solution

The fourth proportional to 78,502,628.88, 108,333,633.06 and 43,694,572.32 is: 60,298,512.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,502,628.88 : 108,333,633.06 = 43,694,572.32 : x
  2. Step 2: Convert to fraction form
    78,502,628.88/108,333,633.06 = 43,694,572.32/x
  3. Step 3: Cross multiply
    78,502,628.88x = 108,333,633.06 × 43,694,572.32
  4. Step 4: Simplify right side
    78,502,628.88x = 4,733,591,764,428,513
  5. Step 5: Solve for x
    x = 4,733,591,764,428,513/78,502,628.88
  6. Step 6: Final answer
    x = 60,298,512.70

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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.