Finding the Fourth Proportional to 81,062,290.62, 121,593,720.24 and 19,651,199.40
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Solution
The fourth proportional to 81,062,290.62, 121,593,720.24 and 19,651,199.40 is: 29,476,868.02
Step by Step Solution
- Step 1: Write the proportion equation
81,062,290.62 : 121,593,720.24 = 19,651,199.40 : x - Step 2: Convert to fraction form
81,062,290.62/121,593,720.24 = 19,651,199.40/x - Step 3: Cross multiply
81,062,290.62x = 121,593,720.24 × 19,651,199.40 - Step 4: Simplify right side
81,062,290.62x = 2,389,462,442,224,055.50 - Step 5: Solve for x
x = 2,389,462,442,224,055.50/81,062,290.62 - Step 6: Final answer
x = 29,476,868.02
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.