Home / 415,865,059.20-623,797,588.80-109,188,172.80

Finding the Fourth Proportional to 415,865,059.20, 623,797,588.80 and 109,188,172.80

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Solution

The fourth proportional to 415,865,059.20, 623,797,588.80 and 109,188,172.80 is: 163,782,259.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,865,059.20 : 623,797,588.80 = 109,188,172.80 : x
  2. Step 2: Convert to fraction form
    415,865,059.20/623,797,588.80 = 109,188,172.80/x
  3. Step 3: Cross multiply
    415,865,059.20x = 623,797,588.80 × 109,188,172.80
  4. Step 4: Simplify right side
    415,865,059.20x = 68,111,318,918,117,736
  5. Step 5: Solve for x
    x = 68,111,318,918,117,736/415,865,059.20
  6. Step 6: Final answer
    x = 163,782,259.20

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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.