Finding the Fourth Proportional to 157,278,554.21, 235,917,627.20 and 42,263,099.12
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Solution
The fourth proportional to 157,278,554.21, 235,917,627.20 and 42,263,099.12 is: 63,394,593.82
Step by Step Solution
- Step 1: Write the proportion equation
157,278,554.21 : 235,917,627.20 = 42,263,099.12 : x - Step 2: Convert to fraction form
157,278,554.21/235,917,627.20 = 42,263,099.12/x - Step 3: Cross multiply
157,278,554.21x = 235,917,627.20 × 42,263,099.12 - Step 4: Simplify right side
157,278,554.21x = 9,970,610,061,117,904 - Step 5: Solve for x
x = 9,970,610,061,117,904/157,278,554.21 - Step 6: Final answer
x = 63,394,593.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.