Finding the Fourth Proportional to 21,548,283.08, 29,737,263.15 and 11,759,359.05
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Solution
The fourth proportional to 21,548,283.08, 29,737,263.15 and 11,759,359.05 is: 16,228,260.66
Step by Step Solution
- Step 1: Write the proportion equation
21,548,283.08 : 29,737,263.15 = 11,759,359.05 : x - Step 2: Convert to fraction form
21,548,283.08/29,737,263.15 = 11,759,359.05/x - Step 3: Cross multiply
21,548,283.08x = 29,737,263.15 × 11,759,359.05 - Step 4: Simplify right side
21,548,283.08x = 349,691,154,545,184 - Step 5: Solve for x
x = 349,691,154,545,184/21,548,283.08 - Step 6: Final answer
x = 16,228,260.66
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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.