Finding the Fourth Proportional to 19,942,393.20, 29,892,594.60 and 7,807,167.60
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Solution
The fourth proportional to 19,942,393.20, 29,892,594.60 and 7,807,167.60 is: 11,702,532.07
Step by Step Solution
- Step 1: Write the proportion equation
19,942,393.20 : 29,892,594.60 = 7,807,167.60 : x - Step 2: Convert to fraction form
19,942,393.20/29,892,594.60 = 7,807,167.60/x - Step 3: Cross multiply
19,942,393.20x = 29,892,594.60 × 7,807,167.60 - Step 4: Simplify right side
19,942,393.20x = 233,376,496,041,054.97 - Step 5: Solve for x
x = 233,376,496,041,054.97/19,942,393.20 - Step 6: Final answer
x = 11,702,532.07
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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.