Finding the Fourth Proportional to 21,441,842.64, 29,596,638.60 and 13,727,661.84
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Solution
The fourth proportional to 21,441,842.64, 29,596,638.60 and 13,727,661.84 is: 18,948,588.19
Step by Step Solution
- Step 1: Write the proportion equation
21,441,842.64 : 29,596,638.60 = 13,727,661.84 : x - Step 2: Convert to fraction form
21,441,842.64/29,596,638.60 = 13,727,661.84/x - Step 3: Cross multiply
21,441,842.64x = 29,596,638.60 × 13,727,661.84 - Step 4: Simplify right side
21,441,842.64x = 406,292,646,301,491.06 - Step 5: Solve for x
x = 406,292,646,301,491.06/21,441,842.64 - Step 6: Final answer
x = 18,948,588.19
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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.