Finding the Fourth Proportional to 81,872,330.22, 112,982,958.80 and 44,702,495.28
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Solution
The fourth proportional to 81,872,330.22, 112,982,958.80 and 44,702,495.28 is: 61,688,975.62
Step by Step Solution
- Step 1: Write the proportion equation
81,872,330.22 : 112,982,958.80 = 44,702,495.28 : x - Step 2: Convert to fraction form
81,872,330.22/112,982,958.80 = 44,702,495.28/x - Step 3: Cross multiply
81,872,330.22x = 112,982,958.80 × 44,702,495.28 - Step 4: Simplify right side
81,872,330.22x = 5,050,620,182,771,003 - Step 5: Solve for x
x = 5,050,620,182,771,003/81,872,330.22 - Step 6: Final answer
x = 61,688,975.62
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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.