Finding the Fourth Proportional to 639,672,993.29, 882,693,944.09 and 368,102,262.82
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Solution
The fourth proportional to 639,672,993.29, 882,693,944.09 and 368,102,262.82 is: 507,949,595.50
Step by Step Solution
- Step 1: Write the proportion equation
639,672,993.29 : 882,693,944.09 = 368,102,262.82 : x - Step 2: Convert to fraction form
639,672,993.29/882,693,944.09 = 368,102,262.82/x - Step 3: Cross multiply
639,672,993.29x = 882,693,944.09 × 368,102,262.82 - Step 4: Simplify right side
639,672,993.29x = 324,921,638,197,039,552 - Step 5: Solve for x
x = 324,921,638,197,039,552/639,672,993.29 - Step 6: Final answer
x = 507,949,595.50
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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.