Finding the Fourth Proportional to 135,158,670.05, 186,522,899.40 and 76,420,074.03
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Solution
The fourth proportional to 135,158,670.05, 186,522,899.40 and 76,420,074.03 is: 105,461,926.91
Step by Step Solution
- Step 1: Write the proportion equation
135,158,670.05 : 186,522,899.40 = 76,420,074.03 : x - Step 2: Convert to fraction form
135,158,670.05/186,522,899.40 = 76,420,074.03/x - Step 3: Cross multiply
135,158,670.05x = 186,522,899.40 × 76,420,074.03 - Step 4: Simplify right side
135,158,670.05x = 14,254,093,781,150,306 - Step 5: Solve for x
x = 14,254,093,781,150,306/135,158,670.05 - Step 6: Final answer
x = 105,461,926.91
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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.