Finding the Fourth Proportional to 549,910,367.70, 824,865,551.55 and 478,883,278.05
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Solution
The fourth proportional to 549,910,367.70, 824,865,551.55 and 478,883,278.05 is: 718,324,917.08
Step by Step Solution
- Step 1: Write the proportion equation
549,910,367.70 : 824,865,551.55 = 478,883,278.05 : x - Step 2: Convert to fraction form
549,910,367.70/824,865,551.55 = 478,883,278.05/x - Step 3: Cross multiply
549,910,367.70x = 824,865,551.55 × 478,883,278.05 - Step 4: Simplify right side
549,910,367.70x = 395,014,319,276,785,216 - Step 5: Solve for x
x = 395,014,319,276,785,216/549,910,367.70 - Step 6: Final answer
x = 718,324,917.08
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1.5x scale
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.