Home / 258,689,990.20-387,468,114.90-229,968,556.60

Finding the Fourth Proportional to 258,689,990.20, 387,468,114.90 and 229,968,556.60

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Solution

The fourth proportional to 258,689,990.20, 387,468,114.90 and 229,968,556.60 is: 344,448,902.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,689,990.20 : 387,468,114.90 = 229,968,556.60 : x
  2. Step 2: Convert to fraction form
    258,689,990.20/387,468,114.90 = 229,968,556.60/x
  3. Step 3: Cross multiply
    258,689,990.20x = 387,468,114.90 × 229,968,556.60
  4. Step 4: Simplify right side
    258,689,990.20x = 89,105,483,112,075,952
  5. Step 5: Solve for x
    x = 89,105,483,112,075,952/258,689,990.20
  6. Step 6: Final answer
    x = 344,448,902.11

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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.