Finding the Fourth Proportional to 18,441,312.90, 27,661,710.15 and 8,343,917.70
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Solution
The fourth proportional to 18,441,312.90, 27,661,710.15 and 8,343,917.70 is: 12,515,759.27
Step by Step Solution
- Step 1: Write the proportion equation
18,441,312.90 : 27,661,710.15 = 8,343,917.70 : x - Step 2: Convert to fraction form
18,441,312.90/27,661,710.15 = 8,343,917.70/x - Step 3: Cross multiply
18,441,312.90x = 27,661,710.15 × 8,343,917.70 - Step 4: Simplify right side
18,441,312.90x = 230,807,032,932,854.66 - Step 5: Solve for x
x = 230,807,032,932,854.66/18,441,312.90 - Step 6: Final answer
x = 12,515,759.27
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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.