Finding the Fourth Proportional to 163,771,405.20, 245,657,107.80 and 148,654,861.20
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Solution
The fourth proportional to 163,771,405.20, 245,657,107.80 and 148,654,861.20 is: 222,982,291.80
Step by Step Solution
- Step 1: Write the proportion equation
163,771,405.20 : 245,657,107.80 = 148,654,861.20 : x - Step 2: Convert to fraction form
163,771,405.20/245,657,107.80 = 148,654,861.20/x - Step 3: Cross multiply
163,771,405.20x = 245,657,107.80 × 148,654,861.20 - Step 4: Simplify right side
163,771,405.20x = 36,518,123,262,802,440 - Step 5: Solve for x
x = 36,518,123,262,802,440/163,771,405.20 - Step 6: Final answer
x = 222,982,291.80
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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.