Finding the Fourth Proportional to 163,888,329.80, 245,832,494.70 and 156,330,057.80
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Solution
The fourth proportional to 163,888,329.80, 245,832,494.70 and 156,330,057.80 is: 234,495,086.70
Step by Step Solution
- Step 1: Write the proportion equation
163,888,329.80 : 245,832,494.70 = 156,330,057.80 : x - Step 2: Convert to fraction form
163,888,329.80/245,832,494.70 = 156,330,057.80/x - Step 3: Cross multiply
163,888,329.80x = 245,832,494.70 × 156,330,057.80 - Step 4: Simplify right side
163,888,329.80x = 38,431,008,105,569,192 - Step 5: Solve for x
x = 38,431,008,105,569,192/163,888,329.80 - Step 6: Final answer
x = 234,495,086.70
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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.