Home / 298,278,555.74-447,390,227.69-140,675,432.81

Finding the Fourth Proportional to 298,278,555.74, 447,390,227.69 and 140,675,432.81

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Solution

The fourth proportional to 298,278,555.74, 447,390,227.69 and 140,675,432.81 is: 211,000,129.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,278,555.74 : 447,390,227.69 = 140,675,432.81 : x
  2. Step 2: Convert to fraction form
    298,278,555.74/447,390,227.69 = 140,675,432.81/x
  3. Step 3: Cross multiply
    298,278,555.74x = 447,390,227.69 × 140,675,432.81
  4. Step 4: Simplify right side
    298,278,555.74x = 62,936,813,912,314,872
  5. Step 5: Solve for x
    x = 62,936,813,912,314,872/298,278,555.74
  6. Step 6: Final answer
    x = 211,000,129.58

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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.