Finding the Fourth Proportional to 21,169,038.36, 29,229,728.04 and 16,266,532.80
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Solution
The fourth proportional to 21,169,038.36, 29,229,728.04 and 16,266,532.80 is: 22,460,459.55
Step by Step Solution
- Step 1: Write the proportion equation
21,169,038.36 : 29,229,728.04 = 16,266,532.80 : x - Step 2: Convert to fraction form
21,169,038.36/29,229,728.04 = 16,266,532.80/x - Step 3: Cross multiply
21,169,038.36x = 29,229,728.04 × 16,266,532.80 - Step 4: Simplify right side
21,169,038.36x = 475,466,329,897,739.75 - Step 5: Solve for x
x = 475,466,329,897,739.75/21,169,038.36 - Step 6: Final answer
x = 22,460,459.55
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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.