Finding the Fourth Proportional to 682,861,642.95, 1,024,295,121.64 and 165,291,253.05
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Solution
The fourth proportional to 682,861,642.95, 1,024,295,121.64 and 165,291,253.05 is: 247,937,522.77
Step by Step Solution
- Step 1: Write the proportion equation
682,861,642.95 : 1,024,295,121.64 = 165,291,253.05 : x - Step 2: Convert to fraction form
682,861,642.95/1,024,295,121.64 = 165,291,253.05/x - Step 3: Cross multiply
682,861,642.95x = 1,024,295,121.64 × 165,291,253.05 - Step 4: Simplify right side
682,861,642.95x = 169,307,024,151,991,584 - Step 5: Solve for x
x = 169,307,024,151,991,584/682,861,642.95 - Step 6: Final answer
x = 247,937,522.77
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.