Finding the Fourth Proportional to 1,340,221,112.80, 2,010,331,669.20 and 995,847,344.80
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Solution
The fourth proportional to 1,340,221,112.80, 2,010,331,669.20 and 995,847,344.80 is: 1,493,771,017.20
Step by Step Solution
- Step 1: Write the proportion equation
1,340,221,112.80 : 2,010,331,669.20 = 995,847,344.80 : x - Step 2: Convert to fraction form
1,340,221,112.80/2,010,331,669.20 = 995,847,344.80/x - Step 3: Cross multiply
1,340,221,112.80x = 2,010,331,669.20 × 995,847,344.80 - Step 4: Simplify right side
1,340,221,112.80x = 2,001,983,454,940,171,776 - Step 5: Solve for x
x = 2,001,983,454,940,171,776/1,340,221,112.80 - Step 6: Final answer
x = 1,493,771,017.20
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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.