Finding the Fourth Proportional to 7,119,683.22, 10,709,831.16 and 6,453,794.55
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Solution
The fourth proportional to 7,119,683.22, 10,709,831.16 and 6,453,794.55 is: 9,708,163.67
Step by Step Solution
- Step 1: Write the proportion equation
7,119,683.22 : 10,709,831.16 = 6,453,794.55 : x - Step 2: Convert to fraction form
7,119,683.22/10,709,831.16 = 6,453,794.55/x - Step 3: Cross multiply
7,119,683.22x = 10,709,831.16 × 6,453,794.55 - Step 4: Simplify right side
7,119,683.22x = 69,119,049,971,828.18 - Step 5: Solve for x
x = 69,119,049,971,828.18/7,119,683.22 - Step 6: Final answer
x = 9,708,163.67
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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.