Finding the Fourth Proportional to 21,387,905.04, 29,515,324.51 and 11,598,346.74
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Solution
The fourth proportional to 21,387,905.04, 29,515,324.51 and 11,598,346.74 is: 16,005,726.94
Step by Step Solution
- Step 1: Write the proportion equation
21,387,905.04 : 29,515,324.51 = 11,598,346.74 : x - Step 2: Convert to fraction form
21,387,905.04/29,515,324.51 = 11,598,346.74/x - Step 3: Cross multiply
21,387,905.04x = 29,515,324.51 × 11,598,346.74 - Step 4: Simplify right side
21,387,905.04x = 342,328,967,810,600.62 - Step 5: Solve for x
x = 342,328,967,810,600.62/21,387,905.04 - Step 6: Final answer
x = 16,005,726.94
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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.