Finding the Fourth Proportional to 15,517,436.93, 21,414,727.36 and 8,641,918.99
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Solution
The fourth proportional to 15,517,436.93, 21,414,727.36 and 8,641,918.99 is: 11,926,218.22
Step by Step Solution
- Step 1: Write the proportion equation
15,517,436.93 : 21,414,727.36 = 8,641,918.99 : x - Step 2: Convert to fraction form
15,517,436.93/21,414,727.36 = 8,641,918.99/x - Step 3: Cross multiply
15,517,436.93x = 21,414,727.36 × 8,641,918.99 - Step 4: Simplify right side
15,517,436.93x = 185,064,339,038,056.56 - Step 5: Solve for x
x = 185,064,339,038,056.56/15,517,436.93 - Step 6: Final answer
x = 11,926,218.22
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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.