Home / 78,825,027.44-108,829,722.36-70,550,760.80

Finding the Fourth Proportional to 78,825,027.44, 108,829,722.36 and 70,550,760.80

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Solution

The fourth proportional to 78,825,027.44, 108,829,722.36 and 70,550,760.80 is: 97,405,861.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,825,027.44 : 108,829,722.36 = 70,550,760.80 : x
  2. Step 2: Convert to fraction form
    78,825,027.44/108,829,722.36 = 70,550,760.80/x
  3. Step 3: Cross multiply
    78,825,027.44x = 108,829,722.36 × 70,550,760.80
  4. Step 4: Simplify right side
    78,825,027.44x = 7,678,019,710,150,771
  5. Step 5: Solve for x
    x = 7,678,019,710,150,771/78,825,027.44
  6. Step 6: Final answer
    x = 97,405,861.56

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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.