Finding the Fourth Proportional to 2,213,236,811.70, 3,319,855,217.55 and 577,461,413.70
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Solution
The fourth proportional to 2,213,236,811.70, 3,319,855,217.55 and 577,461,413.70 is: 866,192,120.55
Step by Step Solution
- Step 1: Write the proportion equation
2,213,236,811.70 : 3,319,855,217.55 = 577,461,413.70 : x - Step 2: Convert to fraction form
2,213,236,811.70/3,319,855,217.55 = 577,461,413.70/x - Step 3: Cross multiply
2,213,236,811.70x = 3,319,855,217.55 × 577,461,413.70 - Step 4: Simplify right side
2,213,236,811.70x = 1,917,088,287,205,744,384 - Step 5: Solve for x
x = 1,917,088,287,205,744,384/2,213,236,811.70 - Step 6: Final answer
x = 866,192,120.55
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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.