Finding the Fourth Proportional to 256,299,246.97, 353,692,972.64 and 138,824,577.02
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Solution
The fourth proportional to 256,299,246.97, 353,692,972.64 and 138,824,577.02 is: 191,577,922.70
Step by Step Solution
- Step 1: Write the proportion equation
256,299,246.97 : 353,692,972.64 = 138,824,577.02 : x - Step 2: Convert to fraction form
256,299,246.97/353,692,972.64 = 138,824,577.02/x - Step 3: Cross multiply
256,299,246.97x = 353,692,972.64 × 138,824,577.02 - Step 4: Simplify right side
256,299,246.97x = 49,101,277,322,925,728 - Step 5: Solve for x
x = 49,101,277,322,925,728/256,299,246.97 - Step 6: Final answer
x = 191,577,922.70
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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.