Finding the Fourth Proportional to 749,971,761.40, 1,034,947,183.46 and 415,436,943.63
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Solution
The fourth proportional to 749,971,761.40, 1,034,947,183.46 and 415,436,943.63 is: 573,295,311.70
Step by Step Solution
- Step 1: Write the proportion equation
749,971,761.40 : 1,034,947,183.46 = 415,436,943.63 : x - Step 2: Convert to fraction form
749,971,761.40/1,034,947,183.46 = 415,436,943.63/x - Step 3: Cross multiply
749,971,761.40x = 1,034,947,183.46 × 415,436,943.63 - Step 4: Simplify right side
749,971,761.40x = 429,955,294,717,660,096 - Step 5: Solve for x
x = 429,955,294,717,660,096/749,971,761.40 - Step 6: Final answer
x = 573,295,311.70
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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.