Home / 280,932,116.16-421,438,551.30-86,858,664.96

Finding the Fourth Proportional to 280,932,116.16, 421,438,551.30 and 86,858,664.96

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Solution

The fourth proportional to 280,932,116.16, 421,438,551.30 and 86,858,664.96 is: 130,300,481.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,932,116.16 : 421,438,551.30 = 86,858,664.96 : x
  2. Step 2: Convert to fraction form
    280,932,116.16/421,438,551.30 = 86,858,664.96/x
  3. Step 3: Cross multiply
    280,932,116.16x = 421,438,551.30 × 86,858,664.96
  4. Step 4: Simplify right side
    280,932,116.16x = 36,605,589,930,174,872
  5. Step 5: Solve for x
    x = 36,605,589,930,174,872/280,932,116.16
  6. Step 6: Final answer
    x = 130,300,481.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.