Finding the Fourth Proportional to 96,772,181.80, 145,158,272.70 and 66,539,093.80
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Solution
The fourth proportional to 96,772,181.80, 145,158,272.70 and 66,539,093.80 is: 99,808,640.70
Step by Step Solution
- Step 1: Write the proportion equation
96,772,181.80 : 145,158,272.70 = 66,539,093.80 : x - Step 2: Convert to fraction form
96,772,181.80/145,158,272.70 = 66,539,093.80/x - Step 3: Cross multiply
96,772,181.80x = 145,158,272.70 × 66,539,093.80 - Step 4: Simplify right side
96,772,181.80x = 9,658,699,923,031,278 - Step 5: Solve for x
x = 9,658,699,923,031,278/96,772,181.80 - Step 6: Final answer
x = 99,808,640.70
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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.