Home / 206,486,485.61-309,733,012.69-114,952,020.89

Finding the Fourth Proportional to 206,486,485.61, 309,733,012.69 and 114,952,020.89

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Solution

The fourth proportional to 206,486,485.61, 309,733,012.69 and 114,952,020.89 is: 172,429,859.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,486,485.61 : 309,733,012.69 = 114,952,020.89 : x
  2. Step 2: Convert to fraction form
    206,486,485.61/309,733,012.69 = 114,952,020.89/x
  3. Step 3: Cross multiply
    206,486,485.61x = 309,733,012.69 × 114,952,020.89
  4. Step 4: Simplify right side
    206,486,485.61x = 35,604,435,743,227,472
  5. Step 5: Solve for x
    x = 35,604,435,743,227,472/206,486,485.61
  6. Step 6: Final answer
    x = 172,429,859.70

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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.