Finding the Fourth Proportional to 638,258,340.60, 957,387,510.90 and 229,327,831.80
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Solution
The fourth proportional to 638,258,340.60, 957,387,510.90 and 229,327,831.80 is: 343,991,747.70
Step by Step Solution
- Step 1: Write the proportion equation
638,258,340.60 : 957,387,510.90 = 229,327,831.80 : x - Step 2: Convert to fraction form
638,258,340.60/957,387,510.90 = 229,327,831.80/x - Step 3: Cross multiply
638,258,340.60x = 957,387,510.90 × 229,327,831.80 - Step 4: Simplify right side
638,258,340.60x = 219,555,602,067,095,872 - Step 5: Solve for x
x = 219,555,602,067,095,872/638,258,340.60 - Step 6: Final answer
x = 343,991,747.70
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Similar ratio
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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.