Finding the Fourth Proportional to 19,782,001.20, 29,649,382.20 and 10,192,443.60
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Solution
The fourth proportional to 19,782,001.20, 29,649,382.20 and 10,192,443.60 is: 15,276,495.68
Step by Step Solution
- Step 1: Write the proportion equation
19,782,001.20 : 29,649,382.20 = 10,192,443.60 : x - Step 2: Convert to fraction form
19,782,001.20/29,649,382.20 = 10,192,443.60/x - Step 3: Cross multiply
19,782,001.20x = 29,649,382.20 × 10,192,443.60 - Step 4: Simplify right side
19,782,001.20x = 302,199,655,848,343.88 - Step 5: Solve for x
x = 302,199,655,848,343.88/19,782,001.20 - Step 6: Final answer
x = 15,276,495.68
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1.5x scale
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.