Finding the Fourth Proportional to 112,156,812.70, 168,235,219.05 and 61,138,476.70
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Solution
The fourth proportional to 112,156,812.70, 168,235,219.05 and 61,138,476.70 is: 91,707,715.05
Step by Step Solution
- Step 1: Write the proportion equation
112,156,812.70 : 168,235,219.05 = 61,138,476.70 : x - Step 2: Convert to fraction form
112,156,812.70/168,235,219.05 = 61,138,476.70/x - Step 3: Cross multiply
112,156,812.70x = 168,235,219.05 × 61,138,476.70 - Step 4: Simplify right side
112,156,812.70x = 10,285,645,020,007,822 - Step 5: Solve for x
x = 10,285,645,020,007,822/112,156,812.70 - Step 6: Final answer
x = 91,707,715.05
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1.5x scale
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.