Home / 205,413,650.85-308,120,457.54-90,398,193.12

Finding the Fourth Proportional to 205,413,650.85, 308,120,457.54 and 90,398,193.12

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Solution

The fourth proportional to 205,413,650.85, 308,120,457.54 and 90,398,193.12 is: 135,597,281.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,413,650.85 : 308,120,457.54 = 90,398,193.12 : x
  2. Step 2: Convert to fraction form
    205,413,650.85/308,120,457.54 = 90,398,193.12/x
  3. Step 3: Cross multiply
    205,413,650.85x = 308,120,457.54 × 90,398,193.12
  4. Step 4: Simplify right side
    205,413,650.85x = 27,853,532,624,923,684
  5. Step 5: Solve for x
    x = 27,853,532,624,923,684/205,413,650.85
  6. Step 6: Final answer
    x = 135,597,281.44

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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.