Home / 258,049,136.80-387,073,705.20-87,848,048.80

Finding the Fourth Proportional to 258,049,136.80, 387,073,705.20 and 87,848,048.80

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Solution

The fourth proportional to 258,049,136.80, 387,073,705.20 and 87,848,048.80 is: 131,772,073.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,049,136.80 : 387,073,705.20 = 87,848,048.80 : x
  2. Step 2: Convert to fraction form
    258,049,136.80/387,073,705.20 = 87,848,048.80/x
  3. Step 3: Cross multiply
    258,049,136.80x = 387,073,705.20 × 87,848,048.80
  4. Step 4: Simplify right side
    258,049,136.80x = 34,003,669,743,606,412
  5. Step 5: Solve for x
    x = 34,003,669,743,606,412/258,049,136.80
  6. Step 6: Final answer
    x = 131,772,073.20

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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.