Finding the Fourth Proportional to 70,969,969.10, 106,454,953.65 and 48,295,153.10
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Solution
The fourth proportional to 70,969,969.10, 106,454,953.65 and 48,295,153.10 is: 72,442,729.65
Step by Step Solution
- Step 1: Write the proportion equation
70,969,969.10 : 106,454,953.65 = 48,295,153.10 : x - Step 2: Convert to fraction form
70,969,969.10/106,454,953.65 = 48,295,153.10/x - Step 3: Cross multiply
70,969,969.10x = 106,454,953.65 × 48,295,153.10 - Step 4: Simplify right side
70,969,969.10x = 5,141,258,284,780,154 - Step 5: Solve for x
x = 5,141,258,284,780,154/70,969,969.10 - Step 6: Final answer
x = 72,442,729.65
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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.