Finding the Fourth Proportional to 201,961,783.08, 278,719,750.62 and 111,434,831.31
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Solution
The fourth proportional to 201,961,783.08, 278,719,750.62 and 111,434,831.31 is: 153,786,958.70
Step by Step Solution
- Step 1: Write the proportion equation
201,961,783.08 : 278,719,750.62 = 111,434,831.31 : x - Step 2: Convert to fraction form
201,961,783.08/278,719,750.62 = 111,434,831.31/x - Step 3: Cross multiply
201,961,783.08x = 278,719,750.62 × 111,434,831.31 - Step 4: Simplify right side
201,961,783.08x = 31,059,088,393,104,968 - Step 5: Solve for x
x = 31,059,088,393,104,968/201,961,783.08 - Step 6: Final answer
x = 153,786,958.70
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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.