Home / 306,411,193-422,353,484.85-207,255,780.10

Finding the Fourth Proportional to 306,411,193, 422,353,484.85 and 207,255,780.10

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Solution

The fourth proportional to 306,411,193, 422,353,484.85 and 207,255,780.10 is: 285,678,862.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,411,193 : 422,353,484.85 = 207,255,780.10 : x
  2. Step 2: Convert to fraction form
    306,411,193/422,353,484.85 = 207,255,780.10/x
  3. Step 3: Cross multiply
    306,411,193x = 422,353,484.85 × 207,255,780.10
  4. Step 4: Simplify right side
    306,411,193x = 87,535,200,980,540,288
  5. Step 5: Solve for x
    x = 87,535,200,980,540,288/306,411,193
  6. Step 6: Final answer
    x = 285,678,862.20

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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.