Finding the Fourth Proportional to 770,432,650.75, 1,155,406,218.72 and 252,742,456.99
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Solution
The fourth proportional to 770,432,650.75, 1,155,406,218.72 and 252,742,456.99 is: 379,034,048.28
Step by Step Solution
- Step 1: Write the proportion equation
770,432,650.75 : 1,155,406,218.72 = 252,742,456.99 : x - Step 2: Convert to fraction form
770,432,650.75/1,155,406,218.72 = 252,742,456.99/x - Step 3: Cross multiply
770,432,650.75x = 1,155,406,218.72 × 252,742,456.99 - Step 4: Simplify right side
770,432,650.75x = 292,020,206,540,818,176 - Step 5: Solve for x
x = 292,020,206,540,818,176/770,432,650.75 - Step 6: Final answer
x = 379,034,048.28
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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.