Finding the Fourth Proportional to 2,279,085,688.40, 3,418,628,532.60 and 1,911,753,669.20
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Solution
The fourth proportional to 2,279,085,688.40, 3,418,628,532.60 and 1,911,753,669.20 is: 2,867,630,503.80
Step by Step Solution
- Step 1: Write the proportion equation
2,279,085,688.40 : 3,418,628,532.60 = 1,911,753,669.20 : x - Step 2: Convert to fraction form
2,279,085,688.40/3,418,628,532.60 = 1,911,753,669.20/x - Step 3: Cross multiply
2,279,085,688.40x = 3,418,628,532.60 × 1,911,753,669.20 - Step 4: Simplify right side
2,279,085,688.40x = 6,535,575,640,829,861,888 - Step 5: Solve for x
x = 6,535,575,640,829,861,888/2,279,085,688.40 - Step 6: Final answer
x = 2,867,630,503.80
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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.