Finding the Fourth Proportional to 102,312,190.80, 153,468,286.20 and 73,758,718.80
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Solution
The fourth proportional to 102,312,190.80, 153,468,286.20 and 73,758,718.80 is: 110,638,078.20
Step by Step Solution
- Step 1: Write the proportion equation
102,312,190.80 : 153,468,286.20 = 73,758,718.80 : x - Step 2: Convert to fraction form
102,312,190.80/153,468,286.20 = 73,758,718.80/x - Step 3: Cross multiply
102,312,190.80x = 153,468,286.20 × 73,758,718.80 - Step 4: Simplify right side
102,312,190.80x = 11,319,624,166,543,720 - Step 5: Solve for x
x = 11,319,624,166,543,720/102,312,190.80 - Step 6: Final answer
x = 110,638,078.20
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1.5x scale
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.