Home / 289,609,502.70-434,414,254.05-265,800,945.90

Finding the Fourth Proportional to 289,609,502.70, 434,414,254.05 and 265,800,945.90

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Solution

The fourth proportional to 289,609,502.70, 434,414,254.05 and 265,800,945.90 is: 398,701,418.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,609,502.70 : 434,414,254.05 = 265,800,945.90 : x
  2. Step 2: Convert to fraction form
    289,609,502.70/434,414,254.05 = 265,800,945.90/x
  3. Step 3: Cross multiply
    289,609,502.70x = 434,414,254.05 × 265,800,945.90
  4. Step 4: Simplify right side
    289,609,502.70x = 115,467,719,638,932,912
  5. Step 5: Solve for x
    x = 115,467,719,638,932,912/289,609,502.70
  6. Step 6: Final answer
    x = 398,701,418.85

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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.