Finding the Fourth Proportional to 403,306,107.40, 605,033,810.70 and 130,685,768.20
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Solution
The fourth proportional to 403,306,107.40, 605,033,810.70 and 130,685,768.20 is: 196,052,841.47
Step by Step Solution
- Step 1: Write the proportion equation
403,306,107.40 : 605,033,810.70 = 130,685,768.20 : x - Step 2: Convert to fraction form
403,306,107.40/605,033,810.70 = 130,685,768.20/x - Step 3: Cross multiply
403,306,107.40x = 605,033,810.70 × 130,685,768.20 - Step 4: Simplify right side
403,306,107.40x = 79,069,308,338,302,880 - Step 5: Solve for x
x = 79,069,308,338,302,880/403,306,107.40 - Step 6: Final answer
x = 196,052,841.47
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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.