Finding the Fourth Proportional to 1,243,068,883.20, 1,864,603,324.80 and 834,320,851.20
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Solution
The fourth proportional to 1,243,068,883.20, 1,864,603,324.80 and 834,320,851.20 is: 1,251,481,276.80
Step by Step Solution
- Step 1: Write the proportion equation
1,243,068,883.20 : 1,864,603,324.80 = 834,320,851.20 : x - Step 2: Convert to fraction form
1,243,068,883.20/1,864,603,324.80 = 834,320,851.20/x - Step 3: Cross multiply
1,243,068,883.20x = 1,864,603,324.80 × 834,320,851.20 - Step 4: Simplify right side
1,243,068,883.20x = 1,555,677,433,097,486,080 - Step 5: Solve for x
x = 1,555,677,433,097,486,080/1,243,068,883.20 - Step 6: Final answer
x = 1,251,481,276.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.