Finding the Fourth Proportional to 2,931,397,246.80, 4,397,733,599.40 and 965,915,852.40
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Solution
The fourth proportional to 2,931,397,246.80, 4,397,733,599.40 and 965,915,852.40 is: 1,449,083,914.82
Step by Step Solution
- Step 1: Write the proportion equation
2,931,397,246.80 : 4,397,733,599.40 = 965,915,852.40 : x - Step 2: Convert to fraction form
2,931,397,246.80/4,397,733,599.40 = 965,915,852.40/x - Step 3: Cross multiply
2,931,397,246.80x = 4,397,733,599.40 × 965,915,852.40 - Step 4: Simplify right side
2,931,397,246.80x = 4,247,840,598,292,570,624 - Step 5: Solve for x
x = 4,247,840,598,292,570,624/2,931,397,246.80 - Step 6: Final answer
x = 1,449,083,914.82
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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.