Home / 415,314,698.40-622,972,047.60-172,946,109.60

Finding the Fourth Proportional to 415,314,698.40, 622,972,047.60 and 172,946,109.60

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Solution

The fourth proportional to 415,314,698.40, 622,972,047.60 and 172,946,109.60 is: 259,419,164.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,314,698.40 : 622,972,047.60 = 172,946,109.60 : x
  2. Step 2: Convert to fraction form
    415,314,698.40/622,972,047.60 = 172,946,109.60/x
  3. Step 3: Cross multiply
    415,314,698.40x = 622,972,047.60 × 172,946,109.60
  4. Step 4: Simplify right side
    415,314,698.40x = 107,740,592,021,966,016
  5. Step 5: Solve for x
    x = 107,740,592,021,966,016/415,314,698.40
  6. Step 6: Final answer
    x = 259,419,164.40

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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.