Finding the Fourth Proportional to 1,012,729,905.55, 1,519,367,553.99 and 521,175,324.07
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Solution
The fourth proportional to 1,012,729,905.55, 1,519,367,553.99 and 521,175,324.07 is: 781,903,321.90
Step by Step Solution
- Step 1: Write the proportion equation
1,012,729,905.55 : 1,519,367,553.99 = 521,175,324.07 : x - Step 2: Convert to fraction form
1,012,729,905.55/1,519,367,553.99 = 521,175,324.07/x - Step 3: Cross multiply
1,012,729,905.55x = 1,519,367,553.99 × 521,175,324.07 - Step 4: Simplify right side
1,012,729,905.55x = 791,856,877,334,080,768 - Step 5: Solve for x
x = 791,856,877,334,080,768/1,012,729,905.55 - Step 6: Final answer
x = 781,903,321.90
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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.