Finding the Fourth Proportional to 636,359,716.09, 878,075,225.85 and 357,847,453.09
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Solution
The fourth proportional to 636,359,716.09, 878,075,225.85 and 357,847,453.09 is: 493,772,586.87
Step by Step Solution
- Step 1: Write the proportion equation
636,359,716.09 : 878,075,225.85 = 357,847,453.09 : x - Step 2: Convert to fraction form
636,359,716.09/878,075,225.85 = 357,847,453.09/x - Step 3: Cross multiply
636,359,716.09x = 878,075,225.85 × 357,847,453.09 - Step 4: Simplify right side
636,359,716.09x = 314,216,983,191,849,024 - Step 5: Solve for x
x = 314,216,983,191,849,024/636,359,716.09 - Step 6: Final answer
x = 493,772,586.87
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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.