Finding the Fourth Proportional to 112,090,513.80, 168,135,770.70 and 66,740,881.80
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Solution
The fourth proportional to 112,090,513.80, 168,135,770.70 and 66,740,881.80 is: 100,111,322.70
Step by Step Solution
- Step 1: Write the proportion equation
112,090,513.80 : 168,135,770.70 = 66,740,881.80 : x - Step 2: Convert to fraction form
112,090,513.80/168,135,770.70 = 66,740,881.80/x - Step 3: Cross multiply
112,090,513.80x = 168,135,770.70 × 66,740,881.80 - Step 4: Simplify right side
112,090,513.80x = 11,221,529,598,640,602 - Step 5: Solve for x
x = 11,221,529,598,640,602/112,090,513.80 - Step 6: Final answer
x = 100,111,322.70
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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.