Finding the Fourth Proportional to 21,677,808.76, 29,923,792.14 and 16,261,058.68
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Solution
The fourth proportional to 21,677,808.76, 29,923,792.14 and 16,261,058.68 is: 22,446,574.07
Step by Step Solution
- Step 1: Write the proportion equation
21,677,808.76 : 29,923,792.14 = 16,261,058.68 : x - Step 2: Convert to fraction form
21,677,808.76/29,923,792.14 = 16,261,058.68/x - Step 3: Cross multiply
21,677,808.76x = 29,923,792.14 × 16,261,058.68 - Step 4: Simplify right side
21,677,808.76x = 486,592,539,916,662.75 - Step 5: Solve for x
x = 486,592,539,916,662.75/21,677,808.76 - Step 6: Final answer
x = 22,446,574.07
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1.5x scale
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.