Finding the Fourth Proportional to 2,660,987,290,194.20, 3,991,437,316,823.20 and 847,838,275,898.50
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Solution
The fourth proportional to 2,660,987,290,194.20, 3,991,437,316,823.20 and 847,838,275,898.50 is: 1,271,743,516,221.51
Step by Step Solution
- Step 1: Write the proportion equation
2,660,987,290,194.20 : 3,991,437,316,823.20 = 847,838,275,898.50 : x - Step 2: Convert to fraction form
2,660,987,290,194.20/3,991,437,316,823.20 = 847,838,275,898.50/x - Step 3: Cross multiply
2,660,987,290,194.20x = 3,991,437,316,823.20 × 847,838,275,898.50 - Step 4: Simplify right side
2,660,987,290,194.20x = 3,384,093,333,052,317,121,904,640 - Step 5: Solve for x
x = 3,384,093,333,052,317,121,904,640/2,660,987,290,194.20 - Step 6: Final answer
x = 1,271,743,516,221.51
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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.