Finding the Fourth Proportional to 2,990,722,831.20, 4,486,084,246.80 and 1,441,040,875.20
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Solution
The fourth proportional to 2,990,722,831.20, 4,486,084,246.80 and 1,441,040,875.20 is: 2,161,561,312.80
Step by Step Solution
- Step 1: Write the proportion equation
2,990,722,831.20 : 4,486,084,246.80 = 1,441,040,875.20 : x - Step 2: Convert to fraction form
2,990,722,831.20/4,486,084,246.80 = 1,441,040,875.20/x - Step 3: Cross multiply
2,990,722,831.20x = 4,486,084,246.80 × 1,441,040,875.20 - Step 4: Simplify right side
2,990,722,831.20x = 6,464,630,769,229,604,864 - Step 5: Solve for x
x = 6,464,630,769,229,604,864/2,990,722,831.20 - Step 6: Final answer
x = 2,161,561,312.80
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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.