Finding the Fourth Proportional to 19,541,986.40, 29,298,807.76 and 13,136,350.88
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Solution
The fourth proportional to 19,541,986.40, 29,298,807.76 and 13,136,350.88 is: 19,694,999.84
Step by Step Solution
- Step 1: Write the proportion equation
19,541,986.40 : 29,298,807.76 = 13,136,350.88 : x - Step 2: Convert to fraction form
19,541,986.40/29,298,807.76 = 13,136,350.88/x - Step 3: Cross multiply
19,541,986.40x = 29,298,807.76 × 13,136,350.88 - Step 4: Simplify right side
19,541,986.40x = 384,879,419,101,026.88 - Step 5: Solve for x
x = 384,879,419,101,026.88/19,541,986.40 - Step 6: Final answer
x = 19,694,999.84
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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.