Finding the Fourth Proportional to 11,615,982.99, 16,030,445.30 and 6,389,212.15
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Solution
The fourth proportional to 11,615,982.99, 16,030,445.30 and 6,389,212.15 is: 8,817,326.61
Step by Step Solution
- Step 1: Write the proportion equation
11,615,982.99 : 16,030,445.30 = 6,389,212.15 : x - Step 2: Convert to fraction form
11,615,982.99/16,030,445.30 = 6,389,212.15/x - Step 3: Cross multiply
11,615,982.99x = 16,030,445.30 × 6,389,212.15 - Step 4: Simplify right side
11,615,982.99x = 102,421,915,880,670.41 - Step 5: Solve for x
x = 102,421,915,880,670.41/11,615,982.99 - Step 6: Final answer
x = 8,817,326.61
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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.