Home / 449,075,999.20-673,613,998.80-328,143,647.20

Finding the Fourth Proportional to 449,075,999.20, 673,613,998.80 and 328,143,647.20

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Solution

The fourth proportional to 449,075,999.20, 673,613,998.80 and 328,143,647.20 is: 492,215,470.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,075,999.20 : 673,613,998.80 = 328,143,647.20 : x
  2. Step 2: Convert to fraction form
    449,075,999.20/673,613,998.80 = 328,143,647.20/x
  3. Step 3: Cross multiply
    449,075,999.20x = 673,613,998.80 × 328,143,647.20
  4. Step 4: Simplify right side
    449,075,999.20x = 221,042,154,371,208,384
  5. Step 5: Solve for x
    x = 221,042,154,371,208,384/449,075,999.20
  6. Step 6: Final answer
    x = 492,215,470.80

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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.