Home / 384,197,255.34-530,192,383.55-207,985,245

Finding the Fourth Proportional to 384,197,255.34, 530,192,383.55 and 207,985,245

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Solution

The fourth proportional to 384,197,255.34, 530,192,383.55 and 207,985,245 is: 287,019,730.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,197,255.34 : 530,192,383.55 = 207,985,245 : x
  2. Step 2: Convert to fraction form
    384,197,255.34/530,192,383.55 = 207,985,245/x
  3. Step 3: Cross multiply
    384,197,255.34x = 530,192,383.55 × 207,985,245
  4. Step 4: Simplify right side
    384,197,255.34x = 110,272,192,788,740,800
  5. Step 5: Solve for x
    x = 110,272,192,788,740,800/384,197,255.34
  6. Step 6: Final answer
    x = 287,019,730.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.