Finding the Fourth Proportional to 85,537,208.40, 128,156,513.40 and 73,593,272.40
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Solution
The fourth proportional to 85,537,208.40, 128,156,513.40 and 73,593,272.40 is: 110,261,456.70
Step by Step Solution
- Step 1: Write the proportion equation
85,537,208.40 : 128,156,513.40 = 73,593,272.40 : x - Step 2: Convert to fraction form
85,537,208.40/128,156,513.40 = 73,593,272.40/x - Step 3: Cross multiply
85,537,208.40x = 128,156,513.40 × 73,593,272.40 - Step 4: Simplify right side
85,537,208.40x = 9,431,457,200,480,452 - Step 5: Solve for x
x = 9,431,457,200,480,452/85,537,208.40 - Step 6: Final answer
x = 110,261,456.70
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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.