Finding the Fourth Proportional to 31,410,198.15, 47,116,346.99 and 8,689,192.71
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Solution
The fourth proportional to 31,410,198.15, 47,116,346.99 and 8,689,192.71 is: 13,034,079.47
Step by Step Solution
- Step 1: Write the proportion equation
31,410,198.15 : 47,116,346.99 = 8,689,192.71 : x - Step 2: Convert to fraction form
31,410,198.15/47,116,346.99 = 8,689,192.71/x - Step 3: Cross multiply
31,410,198.15x = 47,116,346.99 × 8,689,192.71 - Step 4: Simplify right side
31,410,198.15x = 409,403,018,743,892.50 - Step 5: Solve for x
x = 409,403,018,743,892.50/31,410,198.15 - Step 6: Final answer
x = 13,034,079.47
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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.