Home / 331,164,762.40-496,747,143.60-328,897,280.80

Finding the Fourth Proportional to 331,164,762.40, 496,747,143.60 and 328,897,280.80

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Solution

The fourth proportional to 331,164,762.40, 496,747,143.60 and 328,897,280.80 is: 493,345,921.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,164,762.40 : 496,747,143.60 = 328,897,280.80 : x
  2. Step 2: Convert to fraction form
    331,164,762.40/496,747,143.60 = 328,897,280.80/x
  3. Step 3: Cross multiply
    331,164,762.40x = 496,747,143.60 × 328,897,280.80
  4. Step 4: Simplify right side
    331,164,762.40x = 163,378,784,775,207,136
  5. Step 5: Solve for x
    x = 163,378,784,775,207,136/331,164,762.40
  6. Step 6: Final answer
    x = 493,345,921.20

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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.