Finding the Fourth Proportional to 1,643,430,892.16, 2,465,182,226.92 and 988,929,414.20
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Solution
The fourth proportional to 1,643,430,892.16, 2,465,182,226.92 and 988,929,414.20 is: 1,483,415,717.20
Step by Step Solution
- Step 1: Write the proportion equation
1,643,430,892.16 : 2,465,182,226.92 = 988,929,414.20 : x - Step 2: Convert to fraction form
1,643,430,892.16/2,465,182,226.92 = 988,929,414.20/x - Step 3: Cross multiply
1,643,430,892.16x = 2,465,182,226.92 × 988,929,414.20 - Step 4: Simplify right side
1,643,430,892.16x = 2,437,891,215,567,937,536 - Step 5: Solve for x
x = 2,437,891,215,567,937,536/1,643,430,892.16 - Step 6: Final answer
x = 1,483,415,717.20
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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.