Home / 445,164,377,005.12-664,748,821,673.49-363,551,321,087.25

Finding the Fourth Proportional to 445,164,377,005.12, 664,748,821,673.49 and 363,551,321,087.25

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Solution

The fourth proportional to 445,164,377,005.12, 664,748,821,673.49 and 363,551,321,087.25 is: 542,878,821,383.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,164,377,005.12 : 664,748,821,673.49 = 363,551,321,087.25 : x
  2. Step 2: Convert to fraction form
    445,164,377,005.12/664,748,821,673.49 = 363,551,321,087.25/x
  3. Step 3: Cross multiply
    445,164,377,005.12x = 664,748,821,673.49 × 363,551,321,087.25
  4. Step 4: Simplify right side
    445,164,377,005.12x = 241,670,312,310,590,052,237,312
  5. Step 5: Solve for x
    x = 241,670,312,310,590,052,237,312/445,164,377,005.12
  6. Step 6: Final answer
    x = 542,878,821,383.79

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.