Home / 289,609,505.20-434,414,257.80-265,800,948.40

Finding the Fourth Proportional to 289,609,505.20, 434,414,257.80 and 265,800,948.40

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Solution

The fourth proportional to 289,609,505.20, 434,414,257.80 and 265,800,948.40 is: 398,701,422.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,609,505.20 : 434,414,257.80 = 265,800,948.40 : x
  2. Step 2: Convert to fraction form
    289,609,505.20/434,414,257.80 = 265,800,948.40/x
  3. Step 3: Cross multiply
    289,609,505.20x = 434,414,257.80 × 265,800,948.40
  4. Step 4: Simplify right side
    289,609,505.20x = 115,467,721,721,722,096
  5. Step 5: Solve for x
    x = 115,467,721,721,722,096/289,609,505.20
  6. Step 6: Final answer
    x = 398,701,422.60

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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.