Finding the Fourth Proportional to 561,174,560.41, 774,389,655.57 and 310,264,446.28
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Solution
The fourth proportional to 561,174,560.41, 774,389,655.57 and 310,264,446.28 is: 428,147,664.99
Step by Step Solution
- Step 1: Write the proportion equation
561,174,560.41 : 774,389,655.57 = 310,264,446.28 : x - Step 2: Convert to fraction form
561,174,560.41/774,389,655.57 = 310,264,446.28/x - Step 3: Cross multiply
561,174,560.41x = 774,389,655.57 × 310,264,446.28 - Step 4: Simplify right side
561,174,560.41x = 240,265,577,690,385,952 - Step 5: Solve for x
x = 240,265,577,690,385,952/561,174,560.41 - Step 6: Final answer
x = 428,147,664.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.