Finding the Fourth Proportional to 21,433,790.94, 29,578,838.79 and 11,644,305.18
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Solution
The fourth proportional to 21,433,790.94, 29,578,838.79 and 11,644,305.18 is: 16,069,253.76
Step by Step Solution
- Step 1: Write the proportion equation
21,433,790.94 : 29,578,838.79 = 11,644,305.18 : x - Step 2: Convert to fraction form
21,433,790.94/29,578,838.79 = 11,644,305.18/x - Step 3: Cross multiply
21,433,790.94x = 29,578,838.79 × 11,644,305.18 - Step 4: Simplify right side
21,433,790.94x = 344,425,025,740,781.94 - Step 5: Solve for x
x = 344,425,025,740,781.94/21,433,790.94 - Step 6: Final answer
x = 16,069,253.76
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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.