Home / 10,285,138.65-15,427,839.21-7,089,406.77

Finding the Fourth Proportional to 10,285,138.65, 15,427,839.21 and 7,089,406.77

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Solution

The fourth proportional to 10,285,138.65, 15,427,839.21 and 7,089,406.77 is: 10,634,200.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,285,138.65 : 15,427,839.21 = 7,089,406.77 : x
  2. Step 2: Convert to fraction form
    10,285,138.65/15,427,839.21 = 7,089,406.77/x
  3. Step 3: Cross multiply
    10,285,138.65x = 15,427,839.21 × 7,089,406.77
  4. Step 4: Simplify right side
    10,285,138.65x = 109,374,227,741,845.45
  5. Step 5: Solve for x
    x = 109,374,227,741,845.45/10,285,138.65
  6. Step 6: Final answer
    x = 10,634,200.61

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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.