Finding the Fourth Proportional to 2,080,587,805.97, 3,120,881,648.63 and 959,779,853.10
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Solution
The fourth proportional to 2,080,587,805.97, 3,120,881,648.63 and 959,779,853.10 is: 1,439,669,751.82
Step by Step Solution
- Step 1: Write the proportion equation
2,080,587,805.97 : 3,120,881,648.63 = 959,779,853.10 : x - Step 2: Convert to fraction form
2,080,587,805.97/3,120,881,648.63 = 959,779,853.10/x - Step 3: Cross multiply
2,080,587,805.97x = 3,120,881,648.63 × 959,779,853.10 - Step 4: Simplify right side
2,080,587,805.97x = 2,995,359,330,259,788,288 - Step 5: Solve for x
x = 2,995,359,330,259,788,288/2,080,587,805.97 - Step 6: Final answer
x = 1,439,669,751.82
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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.