Home / 472,394,837.40-708,592,256.10-265,770,576.60

Finding the Fourth Proportional to 472,394,837.40, 708,592,256.10 and 265,770,576.60

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Solution

The fourth proportional to 472,394,837.40, 708,592,256.10 and 265,770,576.60 is: 398,655,864.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,394,837.40 : 708,592,256.10 = 265,770,576.60 : x
  2. Step 2: Convert to fraction form
    472,394,837.40/708,592,256.10 = 265,770,576.60/x
  3. Step 3: Cross multiply
    472,394,837.40x = 708,592,256.10 × 265,770,576.60
  4. Step 4: Simplify right side
    472,394,837.40x = 188,322,972,477,991,872
  5. Step 5: Solve for x
    x = 188,322,972,477,991,872/472,394,837.40
  6. Step 6: Final answer
    x = 398,655,864.90

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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.