Home / 9,939,403.20-14,923,101.60-7,811,889.60

Finding the Fourth Proportional to 9,939,403.20, 14,923,101.60 and 7,811,889.60

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Solution

The fourth proportional to 9,939,403.20, 14,923,101.60 and 7,811,889.60 is: 11,728,835.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,939,403.20 : 14,923,101.60 = 7,811,889.60 : x
  2. Step 2: Convert to fraction form
    9,939,403.20/14,923,101.60 = 7,811,889.60/x
  3. Step 3: Cross multiply
    9,939,403.20x = 14,923,101.60 × 7,811,889.60
  4. Step 4: Simplify right side
    9,939,403.20x = 116,577,622,188,783.34
  5. Step 5: Solve for x
    x = 116,577,622,188,783.34/9,939,403.20
  6. Step 6: Final answer
    x = 11,728,835.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.