Home / 391,908,992.37-588,226,639.90-197,956,351.72

Finding the Fourth Proportional to 391,908,992.37, 588,226,639.90 and 197,956,351.72

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Solution

The fourth proportional to 391,908,992.37, 588,226,639.90 and 197,956,351.72 is: 297,117,958.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,908,992.37 : 588,226,639.90 = 197,956,351.72 : x
  2. Step 2: Convert to fraction form
    391,908,992.37/588,226,639.90 = 197,956,351.72/x
  3. Step 3: Cross multiply
    391,908,992.37x = 588,226,639.90 × 197,956,351.72
  4. Step 4: Simplify right side
    391,908,992.37x = 116,443,199,619,118,176
  5. Step 5: Solve for x
    x = 116,443,199,619,118,176/391,908,992.37
  6. Step 6: Final answer
    x = 297,117,958.22

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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.