Finding the Fourth Proportional to 93,312,793.20, 139,969,189.80 and 39,460,105.20
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Solution
The fourth proportional to 93,312,793.20, 139,969,189.80 and 39,460,105.20 is: 59,190,157.80
Step by Step Solution
- Step 1: Write the proportion equation
93,312,793.20 : 139,969,189.80 = 39,460,105.20 : x - Step 2: Convert to fraction form
93,312,793.20/139,969,189.80 = 39,460,105.20/x - Step 3: Cross multiply
93,312,793.20x = 139,969,189.80 × 39,460,105.20 - Step 4: Simplify right side
93,312,793.20x = 5,523,198,954,266,768 - Step 5: Solve for x
x = 5,523,198,954,266,768/93,312,793.20 - Step 6: Final answer
x = 59,190,157.80
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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.