Finding the Fourth Proportional to 25,163,716.13, 37,697,487.53 and 21,091,106.60
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Solution
The fourth proportional to 25,163,716.13, 37,697,487.53 and 21,091,106.60 is: 31,596,355.79
Step by Step Solution
- Step 1: Write the proportion equation
25,163,716.13 : 37,697,487.53 = 21,091,106.60 : x - Step 2: Convert to fraction form
25,163,716.13/37,697,487.53 = 21,091,106.60/x - Step 3: Cross multiply
25,163,716.13x = 37,697,487.53 × 21,091,106.60 - Step 4: Simplify right side
25,163,716.13x = 795,081,727,753,457.62 - Step 5: Solve for x
x = 795,081,727,753,457.62/25,163,716.13 - Step 6: Final answer
x = 31,596,355.79
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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.