Finding the Fourth Proportional to 135,253,626.36, 186,634,257.95 and 75,718,182.55
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Solution
The fourth proportional to 135,253,626.36, 186,634,257.95 and 75,718,182.55 is: 104,482,276.69
Step by Step Solution
- Step 1: Write the proportion equation
135,253,626.36 : 186,634,257.95 = 75,718,182.55 : x - Step 2: Convert to fraction form
135,253,626.36/186,634,257.95 = 75,718,182.55/x - Step 3: Cross multiply
135,253,626.36x = 186,634,257.95 × 75,718,182.55 - Step 4: Simplify right side
135,253,626.36x = 14,131,606,812,230,126 - Step 5: Solve for x
x = 14,131,606,812,230,126/135,253,626.36 - Step 6: Final answer
x = 104,482,276.69
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.