Finding the Fourth Proportional to 722,339,933.53, 996,834,210.11 and 392,315,072.53
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Solution
The fourth proportional to 722,339,933.53, 996,834,210.11 and 392,315,072.53 is: 541,397,570.99
Step by Step Solution
- Step 1: Write the proportion equation
722,339,933.53 : 996,834,210.11 = 392,315,072.53 : x - Step 2: Convert to fraction form
722,339,933.53/996,834,210.11 = 392,315,072.53/x - Step 3: Cross multiply
722,339,933.53x = 996,834,210.11 × 392,315,072.53 - Step 4: Simplify right side
722,339,933.53x = 391,073,085,439,689,856 - Step 5: Solve for x
x = 391,073,085,439,689,856/722,339,933.53 - Step 6: Final answer
x = 541,397,570.99
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1.5x scale
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.