Finding the Fourth Proportional to 86,206,850.70, 129,310,276.05 and 70,901,349.90
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Solution
The fourth proportional to 86,206,850.70, 129,310,276.05 and 70,901,349.90 is: 106,352,024.85
Step by Step Solution
- Step 1: Write the proportion equation
86,206,850.70 : 129,310,276.05 = 70,901,349.90 : x - Step 2: Convert to fraction form
86,206,850.70/129,310,276.05 = 70,901,349.90/x - Step 3: Cross multiply
86,206,850.70x = 129,310,276.05 × 70,901,349.90 - Step 4: Simplify right side
86,206,850.70x = 9,168,273,127,886,640 - Step 5: Solve for x
x = 9,168,273,127,886,640/86,206,850.70 - Step 6: Final answer
x = 106,352,024.85
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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.