Finding the Fourth Proportional to 1,129,540,501.80, 1,694,310,752.70 and 785,166,733.80
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Solution
The fourth proportional to 1,129,540,501.80, 1,694,310,752.70 and 785,166,733.80 is: 1,177,750,100.70
Step by Step Solution
- Step 1: Write the proportion equation
1,129,540,501.80 : 1,694,310,752.70 = 785,166,733.80 : x - Step 2: Convert to fraction form
1,129,540,501.80/1,694,310,752.70 = 785,166,733.80/x - Step 3: Cross multiply
1,129,540,501.80x = 1,694,310,752.70 × 785,166,733.80 - Step 4: Simplify right side
1,129,540,501.80x = 1,330,316,439,739,678,464 - Step 5: Solve for x
x = 1,330,316,439,739,678,464/1,129,540,501.80 - Step 6: Final answer
x = 1,177,750,100.70
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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.