Finding the Fourth Proportional to 39,976,225.68, 55,167,315.72 and 21,641,467.44
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Solution
The fourth proportional to 39,976,225.68, 55,167,315.72 and 21,641,467.44 is: 29,865,292.35
Step by Step Solution
- Step 1: Write the proportion equation
39,976,225.68 : 55,167,315.72 = 21,641,467.44 : x - Step 2: Convert to fraction form
39,976,225.68/55,167,315.72 = 21,641,467.44/x - Step 3: Cross multiply
39,976,225.68x = 55,167,315.72 × 21,641,467.44 - Step 4: Simplify right side
39,976,225.68x = 1,193,901,666,906,580.25 - Step 5: Solve for x
x = 1,193,901,666,906,580.25/39,976,225.68 - Step 6: Final answer
x = 29,865,292.35
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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.