Finding the Fourth Proportional to 2,901,743,999.80, 4,352,615,999.70 and 720,710,135.80
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Solution
The fourth proportional to 2,901,743,999.80, 4,352,615,999.70 and 720,710,135.80 is: 1,081,065,203.70
Step by Step Solution
- Step 1: Write the proportion equation
2,901,743,999.80 : 4,352,615,999.70 = 720,710,135.80 : x - Step 2: Convert to fraction form
2,901,743,999.80/4,352,615,999.70 = 720,710,135.80/x - Step 3: Cross multiply
2,901,743,999.80x = 4,352,615,999.70 × 720,710,135.80 - Step 4: Simplify right side
2,901,743,999.80x = 3,136,974,468,229,039,616 - Step 5: Solve for x
x = 3,136,974,468,229,039,616/2,901,743,999.80 - Step 6: Final answer
x = 1,081,065,203.70
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1.5x scale
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.