Finding the Fourth Proportional to 1,441,682,725,115.70, 1,989,523,633,046.70 and 782,488,937,341.21
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Solution
The fourth proportional to 1,441,682,725,115.70, 1,989,523,633,046.70 and 782,488,937,341.21 is: 1,079,835,532,684.90
Step by Step Solution
- Step 1: Write the proportion equation
1,441,682,725,115.70 : 1,989,523,633,046.70 = 782,488,937,341.21 : x - Step 2: Convert to fraction form
1,441,682,725,115.70/1,989,523,633,046.70 = 782,488,937,341.21/x - Step 3: Cross multiply
1,441,682,725,115.70x = 1,989,523,633,046.70 × 782,488,937,341.21 - Step 4: Simplify right side
1,441,682,725,115.70x = 1,556,780,233,437,935,503,933,440 - Step 5: Solve for x
x = 1,556,780,233,437,935,503,933,440/1,441,682,725,115.70 - Step 6: Final answer
x = 1,079,835,532,684.90
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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.