Home / 20,649,179.04-30,945,866.88-7,862,708.64

Finding the Fourth Proportional to 20,649,179.04, 30,945,866.88 and 7,862,708.64

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Solution

The fourth proportional to 20,649,179.04, 30,945,866.88 and 7,862,708.64 is: 11,783,438.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,649,179.04 : 30,945,866.88 = 7,862,708.64 : x
  2. Step 2: Convert to fraction form
    20,649,179.04/30,945,866.88 = 7,862,708.64/x
  3. Step 3: Cross multiply
    20,649,179.04x = 30,945,866.88 × 7,862,708.64
  4. Step 4: Simplify right side
    20,649,179.04x = 243,318,334,889,665.81
  5. Step 5: Solve for x
    x = 243,318,334,889,665.81/20,649,179.04
  6. Step 6: Final answer
    x = 11,783,438.67

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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.