Finding the Fourth Proportional to 499,436,343.17, 689,223,628.14 and 276,433,513.62
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Solution
The fourth proportional to 499,436,343.17, 689,223,628.14 and 276,433,513.62 is: 381,479,064.95
Step by Step Solution
- Step 1: Write the proportion equation
499,436,343.17 : 689,223,628.14 = 276,433,513.62 : x - Step 2: Convert to fraction form
499,436,343.17/689,223,628.14 = 276,433,513.62/x - Step 3: Cross multiply
499,436,343.17x = 689,223,628.14 × 276,433,513.62 - Step 4: Simplify right side
499,436,343.17x = 190,524,509,196,664,512 - Step 5: Solve for x
x = 190,524,509,196,664,512/499,436,343.17 - Step 6: Final answer
x = 381,479,064.95
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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.