Finding the Fourth Proportional to 790,161,270.92, 1,090,489,515.46 and 437,847,774.38
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Solution
The fourth proportional to 790,161,270.92, 1,090,489,515.46 and 437,847,774.38 is: 604,267,033.71
Step by Step Solution
- Step 1: Write the proportion equation
790,161,270.92 : 1,090,489,515.46 = 437,847,774.38 : x - Step 2: Convert to fraction form
790,161,270.92/1,090,489,515.46 = 437,847,774.38/x - Step 3: Cross multiply
790,161,270.92x = 1,090,489,515.46 × 437,847,774.38 - Step 4: Simplify right side
790,161,270.92x = 477,468,407,328,885,632 - Step 5: Solve for x
x = 477,468,407,328,885,632/790,161,270.92 - Step 6: Final answer
x = 604,267,033.71
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.