Finding the Fourth Proportional to 100,369,174.30, 138,509,860.64 and 56,313,296.67
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Solution
The fourth proportional to 100,369,174.30, 138,509,860.64 and 56,313,296.67 is: 77,712,573.89
Step by Step Solution
- Step 1: Write the proportion equation
100,369,174.30 : 138,509,860.64 = 56,313,296.67 : x - Step 2: Convert to fraction form
100,369,174.30/138,509,860.64 = 56,313,296.67/x - Step 3: Cross multiply
100,369,174.30x = 138,509,860.64 × 56,313,296.67 - Step 4: Simplify right side
100,369,174.30x = 7,799,946,873,940,676 - Step 5: Solve for x
x = 7,799,946,873,940,676/100,369,174.30 - Step 6: Final answer
x = 77,712,573.89
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.