Home / 203,990,596.20-305,985,894.30-172,423,000.80

Finding the Fourth Proportional to 203,990,596.20, 305,985,894.30 and 172,423,000.80

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Solution

The fourth proportional to 203,990,596.20, 305,985,894.30 and 172,423,000.80 is: 258,634,501.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,990,596.20 : 305,985,894.30 = 172,423,000.80 : x
  2. Step 2: Convert to fraction form
    203,990,596.20/305,985,894.30 = 172,423,000.80/x
  3. Step 3: Cross multiply
    203,990,596.20x = 305,985,894.30 × 172,423,000.80
  4. Step 4: Simplify right side
    203,990,596.20x = 52,759,006,097,677,624
  5. Step 5: Solve for x
    x = 52,759,006,097,677,624/203,990,596.20
  6. Step 6: Final answer
    x = 258,634,501.20

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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.