Home / 312,271,340,786.32-430,775,853,344.32-203,947,845,648.55

Finding the Fourth Proportional to 312,271,340,786.32, 430,775,853,344.32 and 203,947,845,648.55

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Solution

The fourth proportional to 312,271,340,786.32, 430,775,853,344.32 and 203,947,845,648.55 is: 281,344,445,589.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,271,340,786.32 : 430,775,853,344.32 = 203,947,845,648.55 : x
  2. Step 2: Convert to fraction form
    312,271,340,786.32/430,775,853,344.32 = 203,947,845,648.55/x
  3. Step 3: Cross multiply
    312,271,340,786.32x = 430,775,853,344.32 × 203,947,845,648.55
  4. Step 4: Simplify right side
    312,271,340,786.32x = 87,855,807,246,989,776,650,240
  5. Step 5: Solve for x
    x = 87,855,807,246,989,776,650,240/312,271,340,786.32
  6. Step 6: Final answer
    x = 281,344,445,589.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.