Home / 15,089,639.34-20,823,704.76-8,214,172.86

Finding the Fourth Proportional to 15,089,639.34, 20,823,704.76 and 8,214,172.86

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Solution

The fourth proportional to 15,089,639.34, 20,823,704.76 and 8,214,172.86 is: 11,335,559.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,089,639.34 : 20,823,704.76 = 8,214,172.86 : x
  2. Step 2: Convert to fraction form
    15,089,639.34/20,823,704.76 = 8,214,172.86/x
  3. Step 3: Cross multiply
    15,089,639.34x = 20,823,704.76 × 8,214,172.86
  4. Step 4: Simplify right side
    15,089,639.34x = 171,049,510,484,244.84
  5. Step 5: Solve for x
    x = 171,049,510,484,244.84/15,089,639.34
  6. Step 6: Final answer
    x = 11,335,559.89

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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.