Home / 78,502,640.63-108,333,649.28-43,694,584.07

Finding the Fourth Proportional to 78,502,640.63, 108,333,649.28 and 43,694,584.07

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Solution

The fourth proportional to 78,502,640.63, 108,333,649.28 and 43,694,584.07 is: 60,298,528.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,502,640.63 : 108,333,649.28 = 43,694,584.07 : x
  2. Step 2: Convert to fraction form
    78,502,640.63/108,333,649.28 = 43,694,584.07/x
  3. Step 3: Cross multiply
    78,502,640.63x = 108,333,649.28 × 43,694,584.07
  4. Step 4: Simplify right side
    78,502,640.63x = 4,733,593,745,856,382
  5. Step 5: Solve for x
    x = 4,733,593,745,856,382/78,502,640.63
  6. Step 6: Final answer
    x = 60,298,528.91

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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.