Finding the Fourth Proportional to 1,994,544,135.60, 2,991,816,203.40 and 1,259,880,097.20
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Solution
The fourth proportional to 1,994,544,135.60, 2,991,816,203.40 and 1,259,880,097.20 is: 1,889,820,145.80
Step by Step Solution
- Step 1: Write the proportion equation
1,994,544,135.60 : 2,991,816,203.40 = 1,259,880,097.20 : x - Step 2: Convert to fraction form
1,994,544,135.60/2,991,816,203.40 = 1,259,880,097.20/x - Step 3: Cross multiply
1,994,544,135.60x = 2,991,816,203.40 × 1,259,880,097.20 - Step 4: Simplify right side
1,994,544,135.60x = 3,769,329,689,144,127,488 - Step 5: Solve for x
x = 3,769,329,689,144,127,488/1,994,544,135.60 - Step 6: Final answer
x = 1,889,820,145.80
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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.