Finding the Fourth Proportional to 26,433,858.20, 39,658,905.21 and 12,618,446.18
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Solution
The fourth proportional to 26,433,858.20, 39,658,905.21 and 12,618,446.18 is: 18,931,544.43
Step by Step Solution
- Step 1: Write the proportion equation
26,433,858.20 : 39,658,905.21 = 12,618,446.18 : x - Step 2: Convert to fraction form
26,433,858.20/39,658,905.21 = 12,618,446.18/x - Step 3: Cross multiply
26,433,858.20x = 39,658,905.21 × 12,618,446.18 - Step 4: Simplify right side
26,433,858.20x = 500,433,760,950,106.62 - Step 5: Solve for x
x = 500,433,760,950,106.62/26,433,858.20 - Step 6: Final answer
x = 18,931,544.43
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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.