Finding the Fourth Proportional to 519,569,800.20, 716,431,738.14 and 331,099,534.80
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Solution
The fourth proportional to 519,569,800.20, 716,431,738.14 and 331,099,534.80 is: 456,551,198.94
Step by Step Solution
- Step 1: Write the proportion equation
519,569,800.20 : 716,431,738.14 = 331,099,534.80 : x - Step 2: Convert to fraction form
519,569,800.20/716,431,738.14 = 331,099,534.80/x - Step 3: Cross multiply
519,569,800.20x = 716,431,738.14 × 331,099,534.80 - Step 4: Simplify right side
519,569,800.20x = 237,210,215,214,109,408 - Step 5: Solve for x
x = 237,210,215,214,109,408/519,569,800.20 - Step 6: Final answer
x = 456,551,198.94
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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.