Home / 326,272,902.18-489,404,561.37-80,629,530.42

Finding the Fourth Proportional to 326,272,902.18, 489,404,561.37 and 80,629,530.42

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Solution

The fourth proportional to 326,272,902.18, 489,404,561.37 and 80,629,530.42 is: 120,943,111.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,272,902.18 : 489,404,561.37 = 80,629,530.42 : x
  2. Step 2: Convert to fraction form
    326,272,902.18/489,404,561.37 = 80,629,530.42/x
  3. Step 3: Cross multiply
    326,272,902.18x = 489,404,561.37 × 80,629,530.42
  4. Step 4: Simplify right side
    326,272,902.18x = 39,460,459,968,669,176
  5. Step 5: Solve for x
    x = 39,460,459,968,669,176/326,272,902.18
  6. Step 6: Final answer
    x = 120,943,111.44

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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.