Finding the Fourth Proportional to 12,696,642.68, 17,521,469.84 and 6,895,465.94
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Solution
The fourth proportional to 12,696,642.68, 17,521,469.84 and 6,895,465.94 is: 9,515,798.90
Step by Step Solution
- Step 1: Write the proportion equation
12,696,642.68 : 17,521,469.84 = 6,895,465.94 : x - Step 2: Convert to fraction form
12,696,642.68/17,521,469.84 = 6,895,465.94/x - Step 3: Cross multiply
12,696,642.68x = 17,521,469.84 × 6,895,465.94 - Step 4: Simplify right side
12,696,642.68x = 120,818,698,500,457.25 - Step 5: Solve for x
x = 120,818,698,500,457.25/12,696,642.68 - Step 6: Final answer
x = 9,515,798.90
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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.