Finding the Fourth Proportional to 19,676,661.68, 27,153,830.34 and 10,975,397.84
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Solution
The fourth proportional to 19,676,661.68, 27,153,830.34 and 10,975,397.84 is: 15,146,069.78
Step by Step Solution
- Step 1: Write the proportion equation
19,676,661.68 : 27,153,830.34 = 10,975,397.84 : x - Step 2: Convert to fraction form
19,676,661.68/27,153,830.34 = 10,975,397.84/x - Step 3: Cross multiply
19,676,661.68x = 27,153,830.34 × 10,975,397.84 - Step 4: Simplify right side
19,676,661.68x = 298,024,090,861,362.44 - Step 5: Solve for x
x = 298,024,090,861,362.44/19,676,661.68 - Step 6: Final answer
x = 15,146,069.78
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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.