Home / 78,140,098.36-107,836,820.94-43,330,450.42

Finding the Fourth Proportional to 78,140,098.36, 107,836,820.94 and 43,330,450.42

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Solution

The fourth proportional to 78,140,098.36, 107,836,820.94 and 43,330,450.42 is: 59,797,954.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,140,098.36 : 107,836,820.94 = 43,330,450.42 : x
  2. Step 2: Convert to fraction form
    78,140,098.36/107,836,820.94 = 43,330,450.42/x
  3. Step 3: Cross multiply
    78,140,098.36x = 107,836,820.94 × 43,330,450.42
  4. Step 4: Simplify right side
    78,140,098.36x = 4,672,618,023,191,088
  5. Step 5: Solve for x
    x = 4,672,618,023,191,088/78,140,098.36
  6. Step 6: Final answer
    x = 59,797,954.20

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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.