Finding the Fourth Proportional to 245,015,170,455.39, 338,121,260,941.74 and 135,147,052,615.05
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Solution
The fourth proportional to 245,015,170,455.39, 338,121,260,941.74 and 135,147,052,615.05 is: 186,503,112,267.82
Step by Step Solution
- Step 1: Write the proportion equation
245,015,170,455.39 : 338,121,260,941.74 = 135,147,052,615.05 : x - Step 2: Convert to fraction form
245,015,170,455.39/338,121,260,941.74 = 135,147,052,615.05/x - Step 3: Cross multiply
245,015,170,455.39x = 338,121,260,941.74 × 135,147,052,615.05 - Step 4: Simplify right side
245,015,170,455.39x = 45,696,091,842,760,386,019,328 - Step 5: Solve for x
x = 45,696,091,842,760,386,019,328/245,015,170,455.39 - Step 6: Final answer
x = 186,503,112,267.82
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.