Finding the Fourth Proportional to 76,807,718,125.20, 115,211,577,187.80 and 76,807,718,125.20
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Solution
The fourth proportional to 76,807,718,125.20, 115,211,577,187.80 and 76,807,718,125.20 is: 115,211,577,187.80
Step by Step Solution
- Step 1: Write the proportion equation
76,807,718,125.20 : 115,211,577,187.80 = 76,807,718,125.20 : x - Step 2: Convert to fraction form
76,807,718,125.20/115,211,577,187.80 = 76,807,718,125.20/x - Step 3: Cross multiply
76,807,718,125.20x = 115,211,577,187.80 × 76,807,718,125.20 - Step 4: Simplify right side
76,807,718,125.20x = 8,849,138,345,400,265,080,832 - Step 5: Solve for x
x = 8,849,138,345,400,265,080,832/76,807,718,125.20 - Step 6: Final answer
x = 115,211,577,187.80
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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.