Finding the Fourth Proportional to 15,660,097.05, 21,946,530.75 and 15,660,097.05
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Solution
The fourth proportional to 15,660,097.05, 21,946,530.75 and 15,660,097.05 is: 21,946,530.75
Step by Step Solution
- Step 1: Write the proportion equation
15,660,097.05 : 21,946,530.75 = 15,660,097.05 : x - Step 2: Convert to fraction form
15,660,097.05/21,946,530.75 = 15,660,097.05/x - Step 3: Cross multiply
15,660,097.05x = 21,946,530.75 × 15,660,097.05 - Step 4: Simplify right side
15,660,097.05x = 343,684,801,455,809.31 - Step 5: Solve for x
x = 343,684,801,455,809.31/15,660,097.05 - Step 6: Final answer
x = 21,946,530.75
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.