Finding the Fourth Proportional to 2,165,263,306.34, 2,987,551,227.86 and 1,225,465,947.92
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Solution
The fourth proportional to 2,165,263,306.34, 2,987,551,227.86 and 1,225,465,947.92 is: 1,690,853,157.07
Step by Step Solution
- Step 1: Write the proportion equation
2,165,263,306.34 : 2,987,551,227.86 = 1,225,465,947.92 : x - Step 2: Convert to fraction form
2,165,263,306.34/2,987,551,227.86 = 1,225,465,947.92/x - Step 3: Cross multiply
2,165,263,306.34x = 2,987,551,227.86 × 1,225,465,947.92 - Step 4: Simplify right side
2,165,263,306.34x = 3,661,142,297,409,015,296 - Step 5: Solve for x
x = 3,661,142,297,409,015,296/2,165,263,306.34 - Step 6: Final answer
x = 1,690,853,157.07
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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.