Home / 326,049,423.40-489,074,135.10-217,210,306.60

Finding the Fourth Proportional to 326,049,423.40, 489,074,135.10 and 217,210,306.60

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Solution

The fourth proportional to 326,049,423.40, 489,074,135.10 and 217,210,306.60 is: 325,815,459.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,049,423.40 : 489,074,135.10 = 217,210,306.60 : x
  2. Step 2: Convert to fraction form
    326,049,423.40/489,074,135.10 = 217,210,306.60/x
  3. Step 3: Cross multiply
    326,049,423.40x = 489,074,135.10 × 217,210,306.60
  4. Step 4: Simplify right side
    326,049,423.40x = 106,231,942,835,200,816
  5. Step 5: Solve for x
    x = 106,231,942,835,200,816/326,049,423.40
  6. Step 6: Final answer
    x = 325,815,459.90

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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.