Home / 667,078,909,504.75-920,504,570,093.10-374,115,725,803.05

Finding the Fourth Proportional to 667,078,909,504.75, 920,504,570,093.10 and 374,115,725,803.05

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Solution

The fourth proportional to 667,078,909,504.75, 920,504,570,093.10 and 374,115,725,803.05 is: 516,243,626,411.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,078,909,504.75 : 920,504,570,093.10 = 374,115,725,803.05 : x
  2. Step 2: Convert to fraction form
    667,078,909,504.75/920,504,570,093.10 = 374,115,725,803.05/x
  3. Step 3: Cross multiply
    667,078,909,504.75x = 920,504,570,093.10 × 374,115,725,803.05
  4. Step 4: Simplify right side
    667,078,909,504.75x = 344,375,235,345,404,613,623,808
  5. Step 5: Solve for x
    x = 344,375,235,345,404,613,623,808/667,078,909,504.75
  6. Step 6: Final answer
    x = 516,243,626,411.57

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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.