Home / 512,245,107.60-768,367,661.40-148,776,205.20

Finding the Fourth Proportional to 512,245,107.60, 768,367,661.40 and 148,776,205.20

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Solution

The fourth proportional to 512,245,107.60, 768,367,661.40 and 148,776,205.20 is: 223,164,307.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,245,107.60 : 768,367,661.40 = 148,776,205.20 : x
  2. Step 2: Convert to fraction form
    512,245,107.60/768,367,661.40 = 148,776,205.20/x
  3. Step 3: Cross multiply
    512,245,107.60x = 768,367,661.40 × 148,776,205.20
  4. Step 4: Simplify right side
    512,245,107.60x = 114,314,824,861,490,512
  5. Step 5: Solve for x
    x = 114,314,824,861,490,512/512,245,107.60
  6. Step 6: Final answer
    x = 223,164,307.80

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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.