Finding the Fourth Proportional to 21,070,386.03, 29,076,912.98 and 12,366,877.12
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Solution
The fourth proportional to 21,070,386.03, 29,076,912.98 and 12,366,877.12 is: 17,066,161.45
Step by Step Solution
- Step 1: Write the proportion equation
21,070,386.03 : 29,076,912.98 = 12,366,877.12 : x - Step 2: Convert to fraction form
21,070,386.03/29,076,912.98 = 12,366,877.12/x - Step 3: Cross multiply
21,070,386.03x = 29,076,912.98 × 12,366,877.12 - Step 4: Simplify right side
21,070,386.03x = 359,590,609,852,593 - Step 5: Solve for x
x = 359,590,609,852,593/21,070,386.03 - Step 6: Final answer
x = 17,066,161.45
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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.