Finding the Fourth Proportional to 821,351,018.52, 1,232,028,627.84 and 207,935,309.88
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Solution
The fourth proportional to 821,351,018.52, 1,232,028,627.84 and 207,935,309.88 is: 311,903,496.48
Step by Step Solution
- Step 1: Write the proportion equation
821,351,018.52 : 1,232,028,627.84 = 207,935,309.88 : x - Step 2: Convert to fraction form
821,351,018.52/1,232,028,627.84 = 207,935,309.88/x - Step 3: Cross multiply
821,351,018.52x = 1,232,028,627.84 × 207,935,309.88 - Step 4: Simplify right side
821,351,018.52x = 256,182,254,510,941,568 - Step 5: Solve for x
x = 256,182,254,510,941,568/821,351,018.52 - Step 6: Final answer
x = 311,903,496.48
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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.