Finding the Fourth Proportional to 27,651,975.09, 38,156,831.64 and 15,261,840.06
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Solution
The fourth proportional to 27,651,975.09, 38,156,831.64 and 15,261,840.06 is: 21,059,742.02
Step by Step Solution
- Step 1: Write the proportion equation
27,651,975.09 : 38,156,831.64 = 15,261,840.06 : x - Step 2: Convert to fraction form
27,651,975.09/38,156,831.64 = 15,261,840.06/x - Step 3: Cross multiply
27,651,975.09x = 38,156,831.64 × 15,261,840.06 - Step 4: Simplify right side
27,651,975.09x = 582,343,461,686,027.50 - Step 5: Solve for x
x = 582,343,461,686,027.50/27,651,975.09 - Step 6: Final answer
x = 21,059,742.02
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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.