Home / 289,609,539.20-434,414,308.80-265,800,982.40

Finding the Fourth Proportional to 289,609,539.20, 434,414,308.80 and 265,800,982.40

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Solution

The fourth proportional to 289,609,539.20, 434,414,308.80 and 265,800,982.40 is: 398,701,473.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,609,539.20 : 434,414,308.80 = 265,800,982.40 : x
  2. Step 2: Convert to fraction form
    289,609,539.20/434,414,308.80 = 265,800,982.40/x
  3. Step 3: Cross multiply
    289,609,539.20x = 434,414,308.80 × 265,800,982.40
  4. Step 4: Simplify right side
    289,609,539.20x = 115,467,750,047,656,976
  5. Step 5: Solve for x
    x = 115,467,750,047,656,976/289,609,539.20
  6. Step 6: Final answer
    x = 398,701,473.60

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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.