Home / 489,974,926.80-734,962,390.20-217,345,693.80

Finding the Fourth Proportional to 489,974,926.80, 734,962,390.20 and 217,345,693.80

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Solution

The fourth proportional to 489,974,926.80, 734,962,390.20 and 217,345,693.80 is: 326,018,540.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,974,926.80 : 734,962,390.20 = 217,345,693.80 : x
  2. Step 2: Convert to fraction form
    489,974,926.80/734,962,390.20 = 217,345,693.80/x
  3. Step 3: Cross multiply
    489,974,926.80x = 734,962,390.20 × 217,345,693.80
  4. Step 4: Simplify right side
    489,974,926.80x = 159,740,910,614,925,344
  5. Step 5: Solve for x
    x = 159,740,910,614,925,344/489,974,926.80
  6. Step 6: Final answer
    x = 326,018,540.70

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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.