Finding the Fourth Proportional to 13,013,456.84, 17,958,572.10 and 7,212,613.08
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Solution
The fourth proportional to 13,013,456.84, 17,958,572.10 and 7,212,613.08 is: 9,953,406.97
Step by Step Solution
- Step 1: Write the proportion equation
13,013,456.84 : 17,958,572.10 = 7,212,613.08 : x - Step 2: Convert to fraction form
13,013,456.84/17,958,572.10 = 7,212,613.08/x - Step 3: Cross multiply
13,013,456.84x = 17,958,572.10 × 7,212,613.08 - Step 4: Simplify right side
13,013,456.84x = 129,528,232,026,583.08 - Step 5: Solve for x
x = 129,528,232,026,583.08/13,013,456.84 - Step 6: Final answer
x = 9,953,406.97
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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.