Finding the Fourth Proportional to 1,611,831,490.80, 2,413,716,157.80 and 1,289,345,218.80
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Solution
The fourth proportional to 1,611,831,490.80, 2,413,716,157.80 and 1,289,345,218.80 is: 1,930,793,265.53
Step by Step Solution
- Step 1: Write the proportion equation
1,611,831,490.80 : 2,413,716,157.80 = 1,289,345,218.80 : x - Step 2: Convert to fraction form
1,611,831,490.80/2,413,716,157.80 = 1,289,345,218.80/x - Step 3: Cross multiply
1,611,831,490.80x = 2,413,716,157.80 × 1,289,345,218.80 - Step 4: Simplify right side
1,611,831,490.80x = 3,112,113,387,599,736,320 - Step 5: Solve for x
x = 3,112,113,387,599,736,320/1,611,831,490.80 - Step 6: Final answer
x = 1,930,793,265.53
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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.