Finding the Fourth Proportional to 157,038,403.20, 235,557,604.80 and 88,163,649.60
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Solution
The fourth proportional to 157,038,403.20, 235,557,604.80 and 88,163,649.60 is: 132,245,474.40
Step by Step Solution
- Step 1: Write the proportion equation
157,038,403.20 : 235,557,604.80 = 88,163,649.60 : x - Step 2: Convert to fraction form
157,038,403.20/235,557,604.80 = 88,163,649.60/x - Step 3: Cross multiply
157,038,403.20x = 235,557,604.80 × 88,163,649.60 - Step 4: Simplify right side
157,038,403.20x = 20,767,618,130,202,476 - Step 5: Solve for x
x = 20,767,618,130,202,476/157,038,403.20 - Step 6: Final answer
x = 132,245,474.40
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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.