Finding the Fourth Proportional to 15,769,917.63, 23,654,718.80 and 4,987,220.31
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Solution
The fourth proportional to 15,769,917.63, 23,654,718.80 and 4,987,220.31 is: 7,480,780.61
Step by Step Solution
- Step 1: Write the proportion equation
15,769,917.63 : 23,654,718.80 = 4,987,220.31 : x - Step 2: Convert to fraction form
15,769,917.63/23,654,718.80 = 4,987,220.31/x - Step 3: Cross multiply
15,769,917.63x = 23,654,718.80 × 4,987,220.31 - Step 4: Simplify right side
15,769,917.63x = 117,971,293,976,668.78 - Step 5: Solve for x
x = 117,971,293,976,668.78/15,769,917.63 - Step 6: Final answer
x = 7,480,780.61
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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.