Finding the Fourth Proportional to 740,315,143.26, 1,103,854,107.11 and 719,975,567.58
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Solution
The fourth proportional to 740,315,143.26, 1,103,854,107.11 and 719,975,567.58 is: 1,073,526,584.62
Step by Step Solution
- Step 1: Write the proportion equation
740,315,143.26 : 1,103,854,107.11 = 719,975,567.58 : x - Step 2: Convert to fraction form
740,315,143.26/1,103,854,107.11 = 719,975,567.58/x - Step 3: Cross multiply
740,315,143.26x = 1,103,854,107.11 × 719,975,567.58 - Step 4: Simplify right side
740,315,143.26x = 794,747,987,288,436,608 - Step 5: Solve for x
x = 794,747,987,288,436,608/740,315,143.26 - Step 6: Final answer
x = 1,073,526,584.62
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.