Finding the Fourth Proportional to 18,090,515.10, 27,136,807.08 and 5,135,652.48
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Solution
The fourth proportional to 18,090,515.10, 27,136,807.08 and 5,135,652.48 is: 7,703,772.38
Step by Step Solution
- Step 1: Write the proportion equation
18,090,515.10 : 27,136,807.08 = 5,135,652.48 : x - Step 2: Convert to fraction form
18,090,515.10/27,136,807.08 = 5,135,652.48/x - Step 3: Cross multiply
18,090,515.10x = 27,136,807.08 × 5,135,652.48 - Step 4: Simplify right side
18,090,515.10x = 139,365,210,579,683.56 - Step 5: Solve for x
x = 139,365,210,579,683.56/18,090,515.10 - Step 6: Final answer
x = 7,703,772.38
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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.