Finding the Fourth Proportional to 21,165,350.16, 31,751,179.99 and 7,517,349.93
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Solution
The fourth proportional to 21,165,350.16, 31,751,179.99 and 7,517,349.93 is: 11,277,145.37
Step by Step Solution
- Step 1: Write the proportion equation
21,165,350.16 : 31,751,179.99 = 7,517,349.93 : x - Step 2: Convert to fraction form
21,165,350.16/31,751,179.99 = 7,517,349.93/x - Step 3: Cross multiply
21,165,350.16x = 31,751,179.99 × 7,517,349.93 - Step 4: Simplify right side
21,165,350.16x = 238,684,730,637,657.12 - Step 5: Solve for x
x = 238,684,730,637,657.12/21,165,350.16 - Step 6: Final answer
x = 11,277,145.37
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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.