Finding the Fourth Proportional to 1,216,037,409.48, 1,678,134,097.86 and 659,120,833.80
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Solution
The fourth proportional to 1,216,037,409.48, 1,678,134,097.86 and 659,120,833.80 is: 909,588,090.95
Step by Step Solution
- Step 1: Write the proportion equation
1,216,037,409.48 : 1,678,134,097.86 = 659,120,833.80 : x - Step 2: Convert to fraction form
1,216,037,409.48/1,678,134,097.86 = 659,120,833.80/x - Step 3: Cross multiply
1,216,037,409.48x = 1,678,134,097.86 × 659,120,833.80 - Step 4: Simplify right side
1,216,037,409.48x = 1,106,093,145,809,693,824 - Step 5: Solve for x
x = 1,106,093,145,809,693,824/1,216,037,409.48 - Step 6: Final answer
x = 909,588,090.95
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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.