Finding the Fourth Proportional to 3,432,134,626.60, 5,148,201,939.90 and 944,990,746.60
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Solution
The fourth proportional to 3,432,134,626.60, 5,148,201,939.90 and 944,990,746.60 is: 1,417,486,119.90
Step by Step Solution
- Step 1: Write the proportion equation
3,432,134,626.60 : 5,148,201,939.90 = 944,990,746.60 : x - Step 2: Convert to fraction form
3,432,134,626.60/5,148,201,939.90 = 944,990,746.60/x - Step 3: Cross multiply
3,432,134,626.60x = 5,148,201,939.90 × 944,990,746.60 - Step 4: Simplify right side
3,432,134,626.60x = 4,865,003,194,833,669,120 - Step 5: Solve for x
x = 4,865,003,194,833,669,120/3,432,134,626.60 - Step 6: Final answer
x = 1,417,486,119.90
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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.