Finding the Fourth Proportional to 2,528,691,182.05, 3,489,518,074.80 and 1,399,707,221.87
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Solution
The fourth proportional to 2,528,691,182.05, 3,489,518,074.80 and 1,399,707,221.87 is: 1,931,554,032.70
Step by Step Solution
- Step 1: Write the proportion equation
2,528,691,182.05 : 3,489,518,074.80 = 1,399,707,221.87 : x - Step 2: Convert to fraction form
2,528,691,182.05/3,489,518,074.80 = 1,399,707,221.87/x - Step 3: Cross multiply
2,528,691,182.05x = 3,489,518,074.80 × 1,399,707,221.87 - Step 4: Simplify right side
2,528,691,182.05x = 4,884,303,650,143,458,304 - Step 5: Solve for x
x = 4,884,303,650,143,458,304/2,528,691,182.05 - Step 6: Final answer
x = 1,931,554,032.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.