Finding the Fourth Proportional to 21,387,811.44, 29,515,187.76 and 11,598,253.04
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Solution
The fourth proportional to 21,387,811.44, 29,515,187.76 and 11,598,253.04 is: 16,005,593.52
Step by Step Solution
- Step 1: Write the proportion equation
21,387,811.44 : 29,515,187.76 = 11,598,253.04 : x - Step 2: Convert to fraction form
21,387,811.44/29,515,187.76 = 11,598,253.04/x - Step 3: Cross multiply
21,387,811.44x = 29,515,187.76 × 11,598,253.04 - Step 4: Simplify right side
21,387,811.44x = 342,324,616,163,590.81 - Step 5: Solve for x
x = 342,324,616,163,590.81/21,387,811.44 - Step 6: Final answer
x = 16,005,593.52
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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.