Finding the Fourth Proportional to 837,229,905.92, 1,155,377,273.12 and 466,039,625.28
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Solution
The fourth proportional to 837,229,905.92, 1,155,377,273.12 and 466,039,625.28 is: 643,134,684.53
Step by Step Solution
- Step 1: Write the proportion equation
837,229,905.92 : 1,155,377,273.12 = 466,039,625.28 : x - Step 2: Convert to fraction form
837,229,905.92/1,155,377,273.12 = 466,039,625.28/x - Step 3: Cross multiply
837,229,905.92x = 1,155,377,273.12 × 466,039,625.28 - Step 4: Simplify right side
837,229,905.92x = 538,451,591,421,872,960 - Step 5: Solve for x
x = 538,451,591,421,872,960/837,229,905.92 - Step 6: Final answer
x = 643,134,684.53
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1.5x scale
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.