Finding the Fourth Proportional to 15,268,639.02, 21,070,187.98 and 8,393,071.87
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Solution
The fourth proportional to 15,268,639.02, 21,070,187.98 and 8,393,071.87 is: 11,582,145.72
Step by Step Solution
- Step 1: Write the proportion equation
15,268,639.02 : 21,070,187.98 = 8,393,071.87 : x - Step 2: Convert to fraction form
15,268,639.02/21,070,187.98 = 8,393,071.87/x - Step 3: Cross multiply
15,268,639.02x = 21,070,187.98 × 8,393,071.87 - Step 4: Simplify right side
15,268,639.02x = 176,843,602,035,905.16 - Step 5: Solve for x
x = 176,843,602,035,905.16/15,268,639.02 - Step 6: Final answer
x = 11,582,145.72
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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.