Finding the Fourth Proportional to 19,816,656.80, 29,717,853.72 and 6,859,286.87
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Solution
The fourth proportional to 19,816,656.80, 29,717,853.72 and 6,859,286.87 is: 10,286,461.83
Step by Step Solution
- Step 1: Write the proportion equation
19,816,656.80 : 29,717,853.72 = 6,859,286.87 : x - Step 2: Convert to fraction form
19,816,656.80/29,717,853.72 = 6,859,286.87/x - Step 3: Cross multiply
19,816,656.80x = 29,717,853.72 × 6,859,286.87 - Step 4: Simplify right side
19,816,656.80x = 203,843,283,677,587.38 - Step 5: Solve for x
x = 203,843,283,677,587.38/19,816,656.80 - Step 6: Final answer
x = 10,286,461.83
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.