Home / 679,969,013.20-1,019,953,519.80-219,953,683.60

Finding the Fourth Proportional to 679,969,013.20, 1,019,953,519.80 and 219,953,683.60

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Solution

The fourth proportional to 679,969,013.20, 1,019,953,519.80 and 219,953,683.60 is: 329,930,525.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,969,013.20 : 1,019,953,519.80 = 219,953,683.60 : x
  2. Step 2: Convert to fraction form
    679,969,013.20/1,019,953,519.80 = 219,953,683.60/x
  3. Step 3: Cross multiply
    679,969,013.20x = 1,019,953,519.80 × 219,953,683.60
  4. Step 4: Simplify right side
    679,969,013.20x = 224,342,533,780,795,520
  5. Step 5: Solve for x
    x = 224,342,533,780,795,520/679,969,013.20
  6. Step 6: Final answer
    x = 329,930,525.40

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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.