Finding the Fourth Proportional to 11,615,633.98, 16,029,963.24 and 6,388,862.53
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Solution
The fourth proportional to 11,615,633.98, 16,029,963.24 and 6,388,862.53 is: 8,816,843.89
Step by Step Solution
- Step 1: Write the proportion equation
11,615,633.98 : 16,029,963.24 = 6,388,862.53 : x - Step 2: Convert to fraction form
11,615,633.98/16,029,963.24 = 6,388,862.53/x - Step 3: Cross multiply
11,615,633.98x = 16,029,963.24 × 6,388,862.53 - Step 4: Simplify right side
11,615,633.98x = 102,413,231,501,313.41 - Step 5: Solve for x
x = 102,413,231,501,313.41/11,615,633.98 - Step 6: Final answer
x = 8,816,843.89
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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.