Finding the Fourth Proportional to 7,317,389.72, 10,923,881.14 and 6,831,120.08
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Solution
The fourth proportional to 7,317,389.72, 10,923,881.14 and 6,831,120.08 is: 10,197,945.81
Step by Step Solution
- Step 1: Write the proportion equation
7,317,389.72 : 10,923,881.14 = 6,831,120.08 : x - Step 2: Convert to fraction form
7,317,389.72/10,923,881.14 = 6,831,120.08/x - Step 3: Cross multiply
7,317,389.72x = 10,923,881.14 × 6,831,120.08 - Step 4: Simplify right side
7,317,389.72x = 74,622,343,806,987.30 - Step 5: Solve for x
x = 74,622,343,806,987.30/7,317,389.72 - Step 6: Final answer
x = 10,197,945.81
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.