Home / 298,278,487.70-447,390,125.64-140,675,364.80

Finding the Fourth Proportional to 298,278,487.70, 447,390,125.64 and 140,675,364.80

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Solution

The fourth proportional to 298,278,487.70, 447,390,125.64 and 140,675,364.80 is: 211,000,027.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,278,487.70 : 447,390,125.64 = 140,675,364.80 : x
  2. Step 2: Convert to fraction form
    298,278,487.70/447,390,125.64 = 140,675,364.80/x
  3. Step 3: Cross multiply
    298,278,487.70x = 447,390,125.64 × 140,675,364.80
  4. Step 4: Simplify right side
    298,278,487.70x = 62,936,769,132,324,840
  5. Step 5: Solve for x
    x = 62,936,769,132,324,840/298,278,487.70
  6. Step 6: Final answer
    x = 211,000,027.58

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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.