Finding the Fourth Proportional to 13,458,304.80, 18,569,974.68 and 7,656,747.84
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Solution
The fourth proportional to 13,458,304.80, 18,569,974.68 and 7,656,747.84 is: 10,564,897.71
Step by Step Solution
- Step 1: Write the proportion equation
13,458,304.80 : 18,569,974.68 = 7,656,747.84 : x - Step 2: Convert to fraction form
13,458,304.80/18,569,974.68 = 7,656,747.84/x - Step 3: Cross multiply
13,458,304.80x = 18,569,974.68 × 7,656,747.84 - Step 4: Simplify right side
13,458,304.80x = 142,185,613,519,944.69 - Step 5: Solve for x
x = 142,185,613,519,944.69/13,458,304.80 - Step 6: Final answer
x = 10,564,897.71
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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.