Home / 421,195,786.72-581,245,876.06-233,025,427.31

Finding the Fourth Proportional to 421,195,786.72, 581,245,876.06 and 233,025,427.31

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Solution

The fourth proportional to 421,195,786.72, 581,245,876.06 and 233,025,427.31 is: 321,572,705.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,195,786.72 : 581,245,876.06 = 233,025,427.31 : x
  2. Step 2: Convert to fraction form
    421,195,786.72/581,245,876.06 = 233,025,427.31/x
  3. Step 3: Cross multiply
    421,195,786.72x = 581,245,876.06 × 233,025,427.31
  4. Step 4: Simplify right side
    421,195,786.72x = 135,445,068,637,568,016
  5. Step 5: Solve for x
    x = 135,445,068,637,568,016/421,195,786.72
  6. Step 6: Final answer
    x = 321,572,705.40

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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.