Finding the Fourth Proportional to 12,121,427.29, 16,727,924.96 and 6,615,156.18
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Solution
The fourth proportional to 12,121,427.29, 16,727,924.96 and 6,615,156.18 is: 9,129,109.43
Step by Step Solution
- Step 1: Write the proportion equation
12,121,427.29 : 16,727,924.96 = 6,615,156.18 : x - Step 2: Convert to fraction form
12,121,427.29/16,727,924.96 = 6,615,156.18/x - Step 3: Cross multiply
12,121,427.29x = 16,727,924.96 × 6,615,156.18 - Step 4: Simplify right side
12,121,427.29x = 110,657,836,194,258.14 - Step 5: Solve for x
x = 110,657,836,194,258.14/12,121,427.29 - Step 6: Final answer
x = 9,129,109.43
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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.