Finding the Fourth Proportional to 168,495,313.40, 252,742,970.10 and 137,884,311.80
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Solution
The fourth proportional to 168,495,313.40, 252,742,970.10 and 137,884,311.80 is: 206,826,467.70
Step by Step Solution
- Step 1: Write the proportion equation
168,495,313.40 : 252,742,970.10 = 137,884,311.80 : x - Step 2: Convert to fraction form
168,495,313.40/252,742,970.10 = 137,884,311.80/x - Step 3: Cross multiply
168,495,313.40x = 252,742,970.10 × 137,884,311.80 - Step 4: Simplify right side
168,495,313.40x = 34,849,290,494,526,480 - Step 5: Solve for x
x = 34,849,290,494,526,480/168,495,313.40 - Step 6: Final answer
x = 206,826,467.70
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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.