Home / 279,512,782.36-385,710,091.09-154,058,074.56

Finding the Fourth Proportional to 279,512,782.36, 385,710,091.09 and 154,058,074.56

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Solution

The fourth proportional to 279,512,782.36, 385,710,091.09 and 154,058,074.56 is: 212,590,470.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,512,782.36 : 385,710,091.09 = 154,058,074.56 : x
  2. Step 2: Convert to fraction form
    279,512,782.36/385,710,091.09 = 154,058,074.56/x
  3. Step 3: Cross multiply
    279,512,782.36x = 385,710,091.09 × 154,058,074.56
  4. Step 4: Simplify right side
    279,512,782.36x = 59,421,753,971,302,464
  5. Step 5: Solve for x
    x = 59,421,753,971,302,464/279,512,782.36
  6. Step 6: Final answer
    x = 212,590,470.71

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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.