Finding the Fourth Proportional to 76,642,908.88, 114,965,995.96 and 27,461,973.84
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Solution
The fourth proportional to 76,642,908.88, 114,965,995.96 and 27,461,973.84 is: 41,193,545.75
Step by Step Solution
- Step 1: Write the proportion equation
76,642,908.88 : 114,965,995.96 = 27,461,973.84 : x - Step 2: Convert to fraction form
76,642,908.88/114,965,995.96 = 27,461,973.84/x - Step 3: Cross multiply
76,642,908.88x = 114,965,995.96 × 27,461,973.84 - Step 4: Simplify right side
76,642,908.88x = 3,157,193,173,543,065.50 - Step 5: Solve for x
x = 3,157,193,173,543,065.50/76,642,908.88 - Step 6: Final answer
x = 41,193,545.75
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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.