Home / 659,297,966.80-988,946,950.20-199,307,131.60

Finding the Fourth Proportional to 659,297,966.80, 988,946,950.20 and 199,307,131.60

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Solution

The fourth proportional to 659,297,966.80, 988,946,950.20 and 199,307,131.60 is: 298,960,697.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,297,966.80 : 988,946,950.20 = 199,307,131.60 : x
  2. Step 2: Convert to fraction form
    659,297,966.80/988,946,950.20 = 199,307,131.60/x
  3. Step 3: Cross multiply
    659,297,966.80x = 988,946,950.20 × 199,307,131.60
  4. Step 4: Simplify right side
    659,297,966.80x = 197,104,179,948,930,048
  5. Step 5: Solve for x
    x = 197,104,179,948,930,048/659,297,966.80
  6. Step 6: Final answer
    x = 298,960,697.40

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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.