Finding the Fourth Proportional to 14,067,328.70, 19,413,956.76 and 7,872,996.26
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Solution
The fourth proportional to 14,067,328.70, 19,413,956.76 and 7,872,996.26 is: 10,865,318.66
Step by Step Solution
- Step 1: Write the proportion equation
14,067,328.70 : 19,413,956.76 = 7,872,996.26 : x - Step 2: Convert to fraction form
14,067,328.70/19,413,956.76 = 7,872,996.26/x - Step 3: Cross multiply
14,067,328.70x = 19,413,956.76 × 7,872,996.26 - Step 4: Simplify right side
14,067,328.70x = 152,846,008,963,281.72 - Step 5: Solve for x
x = 152,846,008,963,281.72/14,067,328.70 - Step 6: Final answer
x = 10,865,318.66
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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.