Finding the Fourth Proportional to 11,478,341.98, 15,840,828.30 and 6,321,702.16
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Solution
The fourth proportional to 11,478,341.98, 15,840,828.30 and 6,321,702.16 is: 8,724,343.52
Step by Step Solution
- Step 1: Write the proportion equation
11,478,341.98 : 15,840,828.30 = 6,321,702.16 : x - Step 2: Convert to fraction form
11,478,341.98/15,840,828.30 = 6,321,702.16/x - Step 3: Cross multiply
11,478,341.98x = 15,840,828.30 × 6,321,702.16 - Step 4: Simplify right side
11,478,341.98x = 100,140,998,480,299.14 - Step 5: Solve for x
x = 100,140,998,480,299.14/11,478,341.98 - Step 6: Final answer
x = 8,724,343.52
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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.