Finding the Fourth Proportional to 939,810,662.66, 1,296,862,789.10 and 543,359,201.09
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Solution
The fourth proportional to 939,810,662.66, 1,296,862,789.10 and 543,359,201.09 is: 749,791,800.62
Step by Step Solution
- Step 1: Write the proportion equation
939,810,662.66 : 1,296,862,789.10 = 543,359,201.09 : x - Step 2: Convert to fraction form
939,810,662.66/1,296,862,789.10 = 543,359,201.09/x - Step 3: Cross multiply
939,810,662.66x = 1,296,862,789.10 × 543,359,201.09 - Step 4: Simplify right side
939,810,662.66x = 704,662,328,999,524,096 - Step 5: Solve for x
x = 704,662,328,999,524,096/939,810,662.66 - Step 6: Final answer
x = 749,791,800.62
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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.