Finding the Fourth Proportional to 1,213,474,409.25, 1,674,118,194.86 and 704,750,519.09
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Solution
The fourth proportional to 1,213,474,409.25, 1,674,118,194.86 and 704,750,519.09 is: 972,278,984.92
Step by Step Solution
- Step 1: Write the proportion equation
1,213,474,409.25 : 1,674,118,194.86 = 704,750,519.09 : x - Step 2: Convert to fraction form
1,213,474,409.25/1,674,118,194.86 = 704,750,519.09/x - Step 3: Cross multiply
1,213,474,409.25x = 1,674,118,194.86 × 704,750,519.09 - Step 4: Simplify right side
1,213,474,409.25x = 1,179,835,666,851,545,856 - Step 5: Solve for x
x = 1,179,835,666,851,545,856/1,213,474,409.25 - Step 6: Final answer
x = 972,278,984.92
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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.