Home / 326,428,045.20-489,642,067.80-111,017,293.20

Finding the Fourth Proportional to 326,428,045.20, 489,642,067.80 and 111,017,293.20

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Solution

The fourth proportional to 326,428,045.20, 489,642,067.80 and 111,017,293.20 is: 166,525,939.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,428,045.20 : 489,642,067.80 = 111,017,293.20 : x
  2. Step 2: Convert to fraction form
    326,428,045.20/489,642,067.80 = 111,017,293.20/x
  3. Step 3: Cross multiply
    326,428,045.20x = 489,642,067.80 × 111,017,293.20
  4. Step 4: Simplify right side
    326,428,045.20x = 54,358,737,004,006,880
  5. Step 5: Solve for x
    x = 54,358,737,004,006,880/326,428,045.20
  6. Step 6: Final answer
    x = 166,525,939.80

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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.