Finding the Fourth Proportional to 19,808,917.26, 27,326,245.23 and 12,937,421.58
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Solution
The fourth proportional to 19,808,917.26, 27,326,245.23 and 12,937,421.58 is: 17,847,071.10
Step by Step Solution
- Step 1: Write the proportion equation
19,808,917.26 : 27,326,245.23 = 12,937,421.58 : x - Step 2: Convert to fraction form
19,808,917.26/27,326,245.23 = 12,937,421.58/x - Step 3: Cross multiply
19,808,917.26x = 27,326,245.23 × 12,937,421.58 - Step 4: Simplify right side
19,808,917.26x = 353,531,154,738,974.06 - Step 5: Solve for x
x = 353,531,154,738,974.06/19,808,917.26 - Step 6: Final answer
x = 17,847,071.10
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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.