Finding the Fourth Proportional to 19,963,252.20, 29,921,258.70 and 8,448,697.20
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Solution
The fourth proportional to 19,963,252.20, 29,921,258.70 and 8,448,697.20 is: 12,663,049.69
Step by Step Solution
- Step 1: Write the proportion equation
19,963,252.20 : 29,921,258.70 = 8,448,697.20 : x - Step 2: Convert to fraction form
19,963,252.20/29,921,258.70 = 8,448,697.20/x - Step 3: Cross multiply
19,963,252.20x = 29,921,258.70 × 8,448,697.20 - Step 4: Simplify right side
19,963,252.20x = 252,795,654,599,165.62 - Step 5: Solve for x
x = 252,795,654,599,165.62/19,963,252.20 - Step 6: Final answer
x = 12,663,049.69
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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.