Home / 667,078,909,513.15-920,504,570,104.65-374,115,725,811.45

Finding the Fourth Proportional to 667,078,909,513.15, 920,504,570,104.65 and 374,115,725,811.45

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Solution

The fourth proportional to 667,078,909,513.15, 920,504,570,104.65 and 374,115,725,811.45 is: 516,243,626,423.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,078,909,513.15 : 920,504,570,104.65 = 374,115,725,811.45 : x
  2. Step 2: Convert to fraction form
    667,078,909,513.15/920,504,570,104.65 = 374,115,725,811.45/x
  3. Step 3: Cross multiply
    667,078,909,513.15x = 920,504,570,104.65 × 374,115,725,811.45
  4. Step 4: Simplify right side
    667,078,909,513.15x = 344,375,235,357,457,902,469,120
  5. Step 5: Solve for x
    x = 344,375,235,357,457,902,469,120/667,078,909,513.15
  6. Step 6: Final answer
    x = 516,243,626,423.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.