Finding the Fourth Proportional to 29,037,844.18, 40,072,738.09 and 15,807,403.86
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Solution
The fourth proportional to 29,037,844.18, 40,072,738.09 and 15,807,403.86 is: 21,814,496.66
Step by Step Solution
- Step 1: Write the proportion equation
29,037,844.18 : 40,072,738.09 = 15,807,403.86 : x - Step 2: Convert to fraction form
29,037,844.18/40,072,738.09 = 15,807,403.86/x - Step 3: Cross multiply
29,037,844.18x = 40,072,738.09 × 15,807,403.86 - Step 4: Simplify right side
29,037,844.18x = 633,445,954,764,635 - Step 5: Solve for x
x = 633,445,954,764,635/29,037,844.18 - Step 6: Final answer
x = 21,814,496.66
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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.