Finding the Fourth Proportional to 21,703,325.19, 29,950,470.54 and 11,913,935.97
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Solution
The fourth proportional to 21,703,325.19, 29,950,470.54 and 11,913,935.97 is: 16,441,166.74
Step by Step Solution
- Step 1: Write the proportion equation
21,703,325.19 : 29,950,470.54 = 11,913,935.97 : x - Step 2: Convert to fraction form
21,703,325.19/29,950,470.54 = 11,913,935.97/x - Step 3: Cross multiply
21,703,325.19x = 29,950,470.54 × 11,913,935.97 - Step 4: Simplify right side
21,703,325.19x = 356,827,988,284,931.31 - Step 5: Solve for x
x = 356,827,988,284,931.31/21,703,325.19 - Step 6: Final answer
x = 16,441,166.74
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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.