Finding the Fourth Proportional to 512,888,520.84, 769,321,991.94 and 124,713,341.88
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Solution
The fourth proportional to 512,888,520.84, 769,321,991.94 and 124,713,341.88 is: 187,067,389.30
Step by Step Solution
- Step 1: Write the proportion equation
512,888,520.84 : 769,321,991.94 = 124,713,341.88 : x - Step 2: Convert to fraction form
512,888,520.84/769,321,991.94 = 124,713,341.88/x - Step 3: Cross multiply
512,888,520.84x = 769,321,991.94 × 124,713,341.88 - Step 4: Simplify right side
512,888,520.84x = 95,944,716,596,615,824 - Step 5: Solve for x
x = 95,944,716,596,615,824/512,888,520.84 - Step 6: Final answer
x = 187,067,389.30
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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.