Finding the Fourth Proportional to 11,687,474.90, 16,128,405.96 and 6,530,878.82
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Solution
The fourth proportional to 11,687,474.90, 16,128,405.96 and 6,530,878.82 is: 9,012,439.88
Step by Step Solution
- Step 1: Write the proportion equation
11,687,474.90 : 16,128,405.96 = 6,530,878.82 : x - Step 2: Convert to fraction form
11,687,474.90/16,128,405.96 = 6,530,878.82/x - Step 3: Cross multiply
11,687,474.90x = 16,128,405.96 × 6,530,878.82 - Step 4: Simplify right side
11,687,474.90x = 105,332,664,884,525.78 - Step 5: Solve for x
x = 105,332,664,884,525.78/11,687,474.90 - Step 6: Final answer
x = 9,012,439.88
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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.