Finding the Fourth Proportional to 15,407,068.68, 21,261,493.08 and 8,531,403.12
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Solution
The fourth proportional to 15,407,068.68, 21,261,493.08 and 8,531,403.12 is: 11,773,191.39
Step by Step Solution
- Step 1: Write the proportion equation
15,407,068.68 : 21,261,493.08 = 8,531,403.12 : x - Step 2: Convert to fraction form
15,407,068.68/21,261,493.08 = 8,531,403.12/x - Step 3: Cross multiply
15,407,068.68x = 21,261,493.08 × 8,531,403.12 - Step 4: Simplify right side
15,407,068.68x = 181,390,368,398,570.38 - Step 5: Solve for x
x = 181,390,368,398,570.38/15,407,068.68 - Step 6: Final answer
x = 11,773,191.39
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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.