Home / 101,393,971.20-139,923,717.30-54,984,212.64

Finding the Fourth Proportional to 101,393,971.20, 139,923,717.30 and 54,984,212.64

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Solution

The fourth proportional to 101,393,971.20, 139,923,717.30 and 54,984,212.64 is: 75,878,233.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,393,971.20 : 139,923,717.30 = 54,984,212.64 : x
  2. Step 2: Convert to fraction form
    101,393,971.20/139,923,717.30 = 54,984,212.64/x
  3. Step 3: Cross multiply
    101,393,971.20x = 139,923,717.30 × 54,984,212.64
  4. Step 4: Simplify right side
    101,393,971.20x = 7,693,595,425,402,447
  5. Step 5: Solve for x
    x = 7,693,595,425,402,447/101,393,971.20
  6. Step 6: Final answer
    x = 75,878,233.53

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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.