Finding the Fourth Proportional to 1,820,578,754.28, 2,512,398,684.12 and 985,203,324.48
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Solution
The fourth proportional to 1,820,578,754.28, 2,512,398,684.12 and 985,203,324.48 is: 1,359,580,589.52
Step by Step Solution
- Step 1: Write the proportion equation
1,820,578,754.28 : 2,512,398,684.12 = 985,203,324.48 : x - Step 2: Convert to fraction form
1,820,578,754.28/2,512,398,684.12 = 985,203,324.48/x - Step 3: Cross multiply
1,820,578,754.28x = 2,512,398,684.12 × 985,203,324.48 - Step 4: Simplify right side
1,820,578,754.28x = 2,475,223,536,014,201,344 - Step 5: Solve for x
x = 2,475,223,536,014,201,344/1,820,578,754.28 - Step 6: Final answer
x = 1,359,580,589.52
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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.