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Finding the Fourth Proportional to 308,953,644.80, 463,729,065.60 and 188,021,292.80

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Solution

The fourth proportional to 308,953,644.80, 463,729,065.60 and 188,021,292.80 is: 282,213,658.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,953,644.80 : 463,729,065.60 = 188,021,292.80 : x
  2. Step 2: Convert to fraction form
    308,953,644.80/463,729,065.60 = 188,021,292.80/x
  3. Step 3: Cross multiply
    308,953,644.80x = 463,729,065.60 × 188,021,292.80
  4. Step 4: Simplify right side
    308,953,644.80x = 87,190,938,423,048,016
  5. Step 5: Solve for x
    x = 87,190,938,423,048,016/308,953,644.80
  6. Step 6: Final answer
    x = 282,213,658.56

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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.