Finding the Fourth Proportional to 1,837,169,939.80, 2,755,754,909.70 and 1,320,609,287.80
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Solution
The fourth proportional to 1,837,169,939.80, 2,755,754,909.70 and 1,320,609,287.80 is: 1,980,913,931.70
Step by Step Solution
- Step 1: Write the proportion equation
1,837,169,939.80 : 2,755,754,909.70 = 1,320,609,287.80 : x - Step 2: Convert to fraction form
1,837,169,939.80/2,755,754,909.70 = 1,320,609,287.80/x - Step 3: Cross multiply
1,837,169,939.80x = 2,755,754,909.70 × 1,320,609,287.80 - Step 4: Simplify right side
1,837,169,939.80x = 3,639,275,528,650,269,696 - Step 5: Solve for x
x = 3,639,275,528,650,269,696/1,837,169,939.80 - Step 6: Final answer
x = 1,980,913,931.70
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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.