Finding the Fourth Proportional to 770,432,649.75, 1,155,406,217.22 and 252,742,455.99
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Solution
The fourth proportional to 770,432,649.75, 1,155,406,217.22 and 252,742,455.99 is: 379,034,046.78
Step by Step Solution
- Step 1: Write the proportion equation
770,432,649.75 : 1,155,406,217.22 = 252,742,455.99 : x - Step 2: Convert to fraction form
770,432,649.75/1,155,406,217.22 = 252,742,455.99/x - Step 3: Cross multiply
770,432,649.75x = 1,155,406,217.22 × 252,742,455.99 - Step 4: Simplify right side
770,432,649.75x = 292,020,205,006,298,240 - Step 5: Solve for x
x = 292,020,205,006,298,240/770,432,649.75 - Step 6: Final answer
x = 379,034,046.78
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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.