Home / 78,502,621.57-108,333,622.97-43,694,565.01

Finding the Fourth Proportional to 78,502,621.57, 108,333,622.97 and 43,694,565.01

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Solution

The fourth proportional to 78,502,621.57, 108,333,622.97 and 43,694,565.01 is: 60,298,502.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,502,621.57 : 108,333,622.97 = 43,694,565.01 : x
  2. Step 2: Convert to fraction form
    78,502,621.57/108,333,622.97 = 43,694,565.01/x
  3. Step 3: Cross multiply
    78,502,621.57x = 108,333,622.97 × 43,694,565.01
  4. Step 4: Simplify right side
    78,502,621.57x = 4,733,590,531,306,042
  5. Step 5: Solve for x
    x = 4,733,590,531,306,042/78,502,621.57
  6. Step 6: Final answer
    x = 60,298,502.61

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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.