Finding the Fourth Proportional to 1,289,136,377.18, 1,932,912,660.84 and 501,271,664.13
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Solution
The fourth proportional to 1,289,136,377.18, 1,932,912,660.84 and 501,271,664.13 is: 751,599,569.50
Step by Step Solution
- Step 1: Write the proportion equation
1,289,136,377.18 : 1,932,912,660.84 = 501,271,664.13 : x - Step 2: Convert to fraction form
1,289,136,377.18/1,932,912,660.84 = 501,271,664.13/x - Step 3: Cross multiply
1,289,136,377.18x = 1,932,912,660.84 × 501,271,664.13 - Step 4: Simplify right side
1,289,136,377.18x = 968,914,346,117,213,056 - Step 5: Solve for x
x = 968,914,346,117,213,056/1,289,136,377.18 - Step 6: Final answer
x = 751,599,569.50
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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.