Finding the Fourth Proportional to 3,157,929,519.28, 4,739,615,256.84 and 2,189,261,379.76
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Solution
The fourth proportional to 3,157,929,519.28, 4,739,615,256.84 and 2,189,261,379.76 is: 3,285,778,410.62
Step by Step Solution
- Step 1: Write the proportion equation
3,157,929,519.28 : 4,739,615,256.84 = 2,189,261,379.76 : x - Step 2: Convert to fraction form
3,157,929,519.28/4,739,615,256.84 = 2,189,261,379.76/x - Step 3: Cross multiply
3,157,929,519.28x = 4,739,615,256.84 × 2,189,261,379.76 - Step 4: Simplify right side
3,157,929,519.28x = 10,376,256,636,721,086,464 - Step 5: Solve for x
x = 10,376,256,636,721,086,464/3,157,929,519.28 - Step 6: Final answer
x = 3,285,778,410.62
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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.