Finding the Fourth Proportional to 21,208,837.48, 29,268,389.82 and 12,041,675.08
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Solution
The fourth proportional to 21,208,837.48, 29,268,389.82 and 12,041,675.08 is: 16,617,621.81
Step by Step Solution
- Step 1: Write the proportion equation
21,208,837.48 : 29,268,389.82 = 12,041,675.08 : x - Step 2: Convert to fraction form
21,208,837.48/29,268,389.82 = 12,041,675.08/x - Step 3: Cross multiply
21,208,837.48x = 29,268,389.82 × 12,041,675.08 - Step 4: Simplify right side
21,208,837.48x = 352,440,440,327,219.69 - Step 5: Solve for x
x = 352,440,440,327,219.69/21,208,837.48 - Step 6: Final answer
x = 16,617,621.81
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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.