Finding the Fourth Proportional to 689,993,454.24, 952,274,465.28 and 392,707,980
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Solution
The fourth proportional to 689,993,454.24, 952,274,465.28 and 392,707,980 is: 541,984,535.31
Step by Step Solution
- Step 1: Write the proportion equation
689,993,454.24 : 952,274,465.28 = 392,707,980 : x - Step 2: Convert to fraction form
689,993,454.24/952,274,465.28 = 392,707,980/x - Step 3: Cross multiply
689,993,454.24x = 952,274,465.28 × 392,707,980 - Step 4: Simplify right side
689,993,454.24x = 373,965,781,665,688,896 - Step 5: Solve for x
x = 373,965,781,665,688,896/689,993,454.24 - Step 6: Final answer
x = 541,984,535.31
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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.