Finding the Fourth Proportional to 2,793,885,773.60, 4,190,828,660.40 and 828,809,703.20
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Solution
The fourth proportional to 2,793,885,773.60, 4,190,828,660.40 and 828,809,703.20 is: 1,243,214,554.80
Step by Step Solution
- Step 1: Write the proportion equation
2,793,885,773.60 : 4,190,828,660.40 = 828,809,703.20 : x - Step 2: Convert to fraction form
2,793,885,773.60/4,190,828,660.40 = 828,809,703.20/x - Step 3: Cross multiply
2,793,885,773.60x = 4,190,828,660.40 × 828,809,703.20 - Step 4: Simplify right side
2,793,885,773.60x = 3,473,399,458,188,177,920 - Step 5: Solve for x
x = 3,473,399,458,188,177,920/2,793,885,773.60 - Step 6: Final answer
x = 1,243,214,554.80
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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.