Finding the Fourth Proportional to 157,230,350.40, 235,845,525.60 and 99,551,287.20
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Solution
The fourth proportional to 157,230,350.40, 235,845,525.60 and 99,551,287.20 is: 149,326,930.80
Step by Step Solution
- Step 1: Write the proportion equation
157,230,350.40 : 235,845,525.60 = 99,551,287.20 : x - Step 2: Convert to fraction form
157,230,350.40/235,845,525.60 = 99,551,287.20/x - Step 3: Cross multiply
157,230,350.40x = 235,845,525.60 × 99,551,287.20 - Step 4: Simplify right side
157,230,350.40x = 23,478,725,653,840,552 - Step 5: Solve for x
x = 23,478,725,653,840,552/157,230,350.40 - Step 6: Final answer
x = 149,326,930.80
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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.