Finding the Fourth Proportional to 5,696,064.12, 7,860,642.30 and 3,117,689.52
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Solution
The fourth proportional to 5,696,064.12, 7,860,642.30 and 3,117,689.52 is: 4,302,451.94
Step by Step Solution
- Step 1: Write the proportion equation
5,696,064.12 : 7,860,642.30 = 3,117,689.52 : x - Step 2: Convert to fraction form
5,696,064.12/7,860,642.30 = 3,117,689.52/x - Step 3: Cross multiply
5,696,064.12x = 7,860,642.30 × 3,117,689.52 - Step 4: Simplify right side
5,696,064.12x = 24,507,042,119,178.70 - Step 5: Solve for x
x = 24,507,042,119,178.70/5,696,064.12 - Step 6: Final answer
x = 4,302,451.94
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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.