Finding the Fourth Proportional to 636,359,715.09, 878,075,224.47 and 357,847,452.09
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Solution
The fourth proportional to 636,359,715.09, 878,075,224.47 and 357,847,452.09 is: 493,772,585.49
Step by Step Solution
- Step 1: Write the proportion equation
636,359,715.09 : 878,075,224.47 = 357,847,452.09 : x - Step 2: Convert to fraction form
636,359,715.09/878,075,224.47 = 357,847,452.09/x - Step 3: Cross multiply
636,359,715.09x = 878,075,224.47 × 357,847,452.09 - Step 4: Simplify right side
636,359,715.09x = 314,216,981,819,944,320 - Step 5: Solve for x
x = 314,216,981,819,944,320/636,359,715.09 - Step 6: Final answer
x = 493,772,585.49
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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.