Finding the Fourth Proportional to 157,127,905.80, 235,691,858.70 and 157,127,905.80
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Solution
The fourth proportional to 157,127,905.80, 235,691,858.70 and 157,127,905.80 is: 235,691,858.70
Step by Step Solution
- Step 1: Write the proportion equation
157,127,905.80 : 235,691,858.70 = 157,127,905.80 : x - Step 2: Convert to fraction form
157,127,905.80/235,691,858.70 = 157,127,905.80/x - Step 3: Cross multiply
157,127,905.80x = 235,691,858.70 × 157,127,905.80 - Step 4: Simplify right side
157,127,905.80x = 37,033,768,171,640,512 - Step 5: Solve for x
x = 37,033,768,171,640,512/157,127,905.80 - Step 6: Final answer
x = 235,691,858.70
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1.5x scale
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.