Home / 342,197,989.60-513,233,998.80-212,573,624.80

Finding the Fourth Proportional to 342,197,989.60, 513,233,998.80 and 212,573,624.80

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Solution

The fourth proportional to 342,197,989.60, 513,233,998.80 and 212,573,624.80 is: 318,821,310.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,197,989.60 : 513,233,998.80 = 212,573,624.80 : x
  2. Step 2: Convert to fraction form
    342,197,989.60/513,233,998.80 = 212,573,624.80/x
  3. Step 3: Cross multiply
    342,197,989.60x = 513,233,998.80 × 212,573,624.80
  4. Step 4: Simplify right side
    342,197,989.60x = 109,100,011,495,514,864
  5. Step 5: Solve for x
    x = 109,100,011,495,514,864/342,197,989.60
  6. Step 6: Final answer
    x = 318,821,310.50

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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.