Home / 342,197,818.60-513,233,742.30-212,573,453.80

Finding the Fourth Proportional to 342,197,818.60, 513,233,742.30 and 212,573,453.80

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Solution

The fourth proportional to 342,197,818.60, 513,233,742.30 and 212,573,453.80 is: 318,821,054.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,197,818.60 : 513,233,742.30 = 212,573,453.80 : x
  2. Step 2: Convert to fraction form
    342,197,818.60/513,233,742.30 = 212,573,453.80/x
  3. Step 3: Cross multiply
    342,197,818.60x = 513,233,742.30 × 212,573,453.80
  4. Step 4: Simplify right side
    342,197,818.60x = 109,099,869,207,410,160
  5. Step 5: Solve for x
    x = 109,099,869,207,410,160/342,197,818.60
  6. Step 6: Final answer
    x = 318,821,054.01

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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.