Finding the Fourth Proportional to 129,368,140.20, 194,052,210.30 and 92,899,477.80
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Solution
The fourth proportional to 129,368,140.20, 194,052,210.30 and 92,899,477.80 is: 139,349,216.70
Step by Step Solution
- Step 1: Write the proportion equation
129,368,140.20 : 194,052,210.30 = 92,899,477.80 : x - Step 2: Convert to fraction form
129,368,140.20/194,052,210.30 = 92,899,477.80/x - Step 3: Cross multiply
129,368,140.20x = 194,052,210.30 × 92,899,477.80 - Step 4: Simplify right side
129,368,140.20x = 18,027,349,002,805,780 - Step 5: Solve for x
x = 18,027,349,002,805,780/129,368,140.20 - Step 6: Final answer
x = 139,349,216.70
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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.