Home / 408,078,485.30-613,312,121.55-355,525,166.90

Finding the Fourth Proportional to 408,078,485.30, 613,312,121.55 and 355,525,166.90

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Solution

The fourth proportional to 408,078,485.30, 613,312,121.55 and 355,525,166.90 is: 534,328,327.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,078,485.30 : 613,312,121.55 = 355,525,166.90 : x
  2. Step 2: Convert to fraction form
    408,078,485.30/613,312,121.55 = 355,525,166.90/x
  3. Step 3: Cross multiply
    408,078,485.30x = 613,312,121.55 × 355,525,166.90
  4. Step 4: Simplify right side
    408,078,485.30x = 218,047,894,375,856,800
  5. Step 5: Solve for x
    x = 218,047,894,375,856,800/408,078,485.30
  6. Step 6: Final answer
    x = 534,328,327.10

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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.