Finding the Fourth Proportional to 154,912,052.21, 213,782,465.61 and 84,351,530.66
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Solution
The fourth proportional to 154,912,052.21, 213,782,465.61 and 84,351,530.66 is: 116,407,199.73
Step by Step Solution
- Step 1: Write the proportion equation
154,912,052.21 : 213,782,465.61 = 84,351,530.66 : x - Step 2: Convert to fraction form
154,912,052.21/213,782,465.61 = 84,351,530.66/x - Step 3: Cross multiply
154,912,052.21x = 213,782,465.61 × 84,351,530.66 - Step 4: Simplify right side
154,912,052.21x = 18,032,878,202,472,312 - Step 5: Solve for x
x = 18,032,878,202,472,312/154,912,052.21 - Step 6: Final answer
x = 116,407,199.73
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.