Finding the Fourth Proportional to 153,232,928.19, 211,465,906.97 and 83,622,793.05
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Solution
The fourth proportional to 153,232,928.19, 211,465,906.97 and 83,622,793.05 is: 115,401,891.64
Step by Step Solution
- Step 1: Write the proportion equation
153,232,928.19 : 211,465,906.97 = 83,622,793.05 : x - Step 2: Convert to fraction form
153,232,928.19/211,465,906.97 = 83,622,793.05/x - Step 3: Cross multiply
153,232,928.19x = 211,465,906.97 × 83,622,793.05 - Step 4: Simplify right side
153,232,928.19x = 17,683,369,775,264,748 - Step 5: Solve for x
x = 17,683,369,775,264,748/153,232,928.19 - Step 6: Final answer
x = 115,401,891.64
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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.