Finding the Fourth Proportional to 11,555,985.74, 15,947,245.94 and 6,399,341.06
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Solution
The fourth proportional to 11,555,985.74, 15,947,245.94 and 6,399,341.06 is: 8,831,082.70
Step by Step Solution
- Step 1: Write the proportion equation
11,555,985.74 : 15,947,245.94 = 6,399,341.06 : x - Step 2: Convert to fraction form
11,555,985.74/15,947,245.94 = 6,399,341.06/x - Step 3: Cross multiply
11,555,985.74x = 15,947,245.94 × 6,399,341.06 - Step 4: Simplify right side
11,555,985.74x = 102,051,865,737,760.28 - Step 5: Solve for x
x = 102,051,865,737,760.28/11,555,985.74 - Step 6: Final answer
x = 8,831,082.70
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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.