Finding the Fourth Proportional to 99,643,405.80, 149,465,108.70 and 83,771,034.60
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Solution
The fourth proportional to 99,643,405.80, 149,465,108.70 and 83,771,034.60 is: 125,656,551.90
Step by Step Solution
- Step 1: Write the proportion equation
99,643,405.80 : 149,465,108.70 = 83,771,034.60 : x - Step 2: Convert to fraction form
99,643,405.80/149,465,108.70 = 83,771,034.60/x - Step 3: Cross multiply
99,643,405.80x = 149,465,108.70 × 83,771,034.60 - Step 4: Simplify right side
99,643,405.80x = 12,520,846,792,400,460 - Step 5: Solve for x
x = 12,520,846,792,400,460/99,643,405.80 - Step 6: Final answer
x = 125,656,551.90
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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.