Finding the Fourth Proportional to 11,864,511.74, 16,372,878.77 and 6,970,179.99
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Solution
The fourth proportional to 11,864,511.74, 16,372,878.77 and 6,970,179.99 is: 9,618,761.77
Step by Step Solution
- Step 1: Write the proportion equation
11,864,511.74 : 16,372,878.77 = 6,970,179.99 : x - Step 2: Convert to fraction form
11,864,511.74/16,372,878.77 = 6,970,179.99/x - Step 3: Cross multiply
11,864,511.74x = 16,372,878.77 × 6,970,179.99 - Step 4: Simplify right side
11,864,511.74x = 114,121,911,981,349.81 - Step 5: Solve for x
x = 114,121,911,981,349.81/11,864,511.74 - Step 6: Final answer
x = 9,618,761.77
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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.