Finding the Fourth Proportional to 75,569,318.20, 113,186,015.70 and 65,491,622.20
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Solution
The fourth proportional to 75,569,318.20, 113,186,015.70 and 65,491,622.20 is: 98,091,870.55
Step by Step Solution
- Step 1: Write the proportion equation
75,569,318.20 : 113,186,015.70 = 65,491,622.20 : x - Step 2: Convert to fraction form
75,569,318.20/113,186,015.70 = 65,491,622.20/x - Step 3: Cross multiply
75,569,318.20x = 113,186,015.70 × 65,491,622.20 - Step 4: Simplify right side
75,569,318.20x = 7,412,735,778,547,669 - Step 5: Solve for x
x = 7,412,735,778,547,669/75,569,318.20 - Step 6: Final answer
x = 98,091,870.55
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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.