Home / 315,431,193,181.32-435,295,429,225.83-170,915,211,102.42

Finding the Fourth Proportional to 315,431,193,181.32, 435,295,429,225.83 and 170,915,211,102.42

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Solution

The fourth proportional to 315,431,193,181.32, 435,295,429,225.83 and 170,915,211,102.42 is: 235,863,198,651.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,431,193,181.32 : 435,295,429,225.83 = 170,915,211,102.42 : x
  2. Step 2: Convert to fraction form
    315,431,193,181.32/435,295,429,225.83 = 170,915,211,102.42/x
  3. Step 3: Cross multiply
    315,431,193,181.32x = 435,295,429,225.83 × 170,915,211,102.42
  4. Step 4: Simplify right side
    315,431,193,181.32x = 74,398,610,178,051,271,557,120
  5. Step 5: Solve for x
    x = 74,398,610,178,051,271,557,120/315,431,193,181.32
  6. Step 6: Final answer
    x = 235,863,198,651.01

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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.