Finding the Fourth Proportional to 1,990,659,225.60, 2,985,988,838.40 and 1,340,909,107.20
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Solution
The fourth proportional to 1,990,659,225.60, 2,985,988,838.40 and 1,340,909,107.20 is: 2,011,363,660.80
Step by Step Solution
- Step 1: Write the proportion equation
1,990,659,225.60 : 2,985,988,838.40 = 1,340,909,107.20 : x - Step 2: Convert to fraction form
1,990,659,225.60/2,985,988,838.40 = 1,340,909,107.20/x - Step 3: Cross multiply
1,990,659,225.60x = 2,985,988,838.40 × 1,340,909,107.20 - Step 4: Simplify right side
1,990,659,225.60x = 4,003,939,627,408,109,568 - Step 5: Solve for x
x = 4,003,939,627,408,109,568/1,990,659,225.60 - Step 6: Final answer
x = 2,011,363,660.80
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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.