Finding the Fourth Proportional to 8,158,435.86, 11,258,663.99 and 4,487,728.62
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Solution
The fourth proportional to 8,158,435.86, 11,258,663.99 and 4,487,728.62 is: 6,193,077.87
Step by Step Solution
- Step 1: Write the proportion equation
8,158,435.86 : 11,258,663.99 = 4,487,728.62 : x - Step 2: Convert to fraction form
8,158,435.86/11,258,663.99 = 4,487,728.62/x - Step 3: Cross multiply
8,158,435.86x = 11,258,663.99 × 4,487,728.62 - Step 4: Simplify right side
8,158,435.86x = 50,525,828,610,886.40 - Step 5: Solve for x
x = 50,525,828,610,886.40/8,158,435.86 - Step 6: Final answer
x = 6,193,077.87
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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.