Finding the Fourth Proportional to 81,243,859.23, 112,087,104.68 and 53,381,566.71
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Solution
The fourth proportional to 81,243,859.23, 112,087,104.68 and 53,381,566.71 is: 73,647,230.85
Step by Step Solution
- Step 1: Write the proportion equation
81,243,859.23 : 112,087,104.68 = 53,381,566.71 : x - Step 2: Convert to fraction form
81,243,859.23/112,087,104.68 = 53,381,566.71/x - Step 3: Cross multiply
81,243,859.23x = 112,087,104.68 × 53,381,566.71 - Step 4: Simplify right side
81,243,859.23x = 5,983,385,255,939,627 - Step 5: Solve for x
x = 5,983,385,255,939,627/81,243,859.23 - Step 6: Final answer
x = 73,647,230.85
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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.