Home / 133,134,438.80-199,701,658.20-128,032,605.20

Finding the Fourth Proportional to 133,134,438.80, 199,701,658.20 and 128,032,605.20

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Solution

The fourth proportional to 133,134,438.80, 199,701,658.20 and 128,032,605.20 is: 192,048,907.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,134,438.80 : 199,701,658.20 = 128,032,605.20 : x
  2. Step 2: Convert to fraction form
    133,134,438.80/199,701,658.20 = 128,032,605.20/x
  3. Step 3: Cross multiply
    133,134,438.80x = 199,701,658.20 × 128,032,605.20
  4. Step 4: Simplify right side
    133,134,438.80x = 25,568,323,562,105,940
  5. Step 5: Solve for x
    x = 25,568,323,562,105,940/133,134,438.80
  6. Step 6: Final answer
    x = 192,048,907.80

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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.