Finding the Fourth Proportional to 80,762,528.30, 121,143,792.45 and 48,513,901.10
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Solution
The fourth proportional to 80,762,528.30, 121,143,792.45 and 48,513,901.10 is: 72,770,851.65
Step by Step Solution
- Step 1: Write the proportion equation
80,762,528.30 : 121,143,792.45 = 48,513,901.10 : x - Step 2: Convert to fraction form
80,762,528.30/121,143,792.45 = 48,513,901.10/x - Step 3: Cross multiply
80,762,528.30x = 121,143,792.45 × 48,513,901.10 - Step 4: Simplify right side
80,762,528.30x = 5,877,157,965,798,227 - Step 5: Solve for x
x = 5,877,157,965,798,227/80,762,528.30 - Step 6: Final answer
x = 72,770,851.65
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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.