Finding the Fourth Proportional to 19,218,768.34, 26,521,902.37 and 10,516,942.74
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Solution
The fourth proportional to 19,218,768.34, 26,521,902.37 and 10,516,942.74 is: 14,513,382.11
Step by Step Solution
- Step 1: Write the proportion equation
19,218,768.34 : 26,521,902.37 = 10,516,942.74 : x - Step 2: Convert to fraction form
19,218,768.34/26,521,902.37 = 10,516,942.74/x - Step 3: Cross multiply
19,218,768.34x = 26,521,902.37 × 10,516,942.74 - Step 4: Simplify right side
19,218,768.34x = 278,929,328,581,160.31 - Step 5: Solve for x
x = 278,929,328,581,160.31/19,218,768.34 - Step 6: Final answer
x = 14,513,382.11
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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.