Home / 279,789,608.34-386,092,181.97-154,343,255.22

Finding the Fourth Proportional to 279,789,608.34, 386,092,181.97 and 154,343,255.22

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Solution

The fourth proportional to 279,789,608.34, 386,092,181.97 and 154,343,255.22 is: 212,984,050.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,789,608.34 : 386,092,181.97 = 154,343,255.22 : x
  2. Step 2: Convert to fraction form
    279,789,608.34/386,092,181.97 = 154,343,255.22/x
  3. Step 3: Cross multiply
    279,789,608.34x = 386,092,181.97 × 154,343,255.22
  4. Step 4: Simplify right side
    279,789,608.34x = 59,590,724,180,242,400
  5. Step 5: Solve for x
    x = 59,590,724,180,242,400/279,789,608.34
  6. Step 6: Final answer
    x = 212,984,050.89

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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.