Finding the Fourth Proportional to 85,634,981.12, 118,177,124.64 and 46,477,105.76
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Solution
The fourth proportional to 85,634,981.12, 118,177,124.64 and 46,477,105.76 is: 64,138,867.65
Step by Step Solution
- Step 1: Write the proportion equation
85,634,981.12 : 118,177,124.64 = 46,477,105.76 : x - Step 2: Convert to fraction form
85,634,981.12/118,177,124.64 = 46,477,105.76/x - Step 3: Cross multiply
85,634,981.12x = 118,177,124.64 × 46,477,105.76 - Step 4: Simplify right side
85,634,981.12x = 5,492,530,720,305,982 - Step 5: Solve for x
x = 5,492,530,720,305,982/85,634,981.12 - Step 6: Final answer
x = 64,138,867.65
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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.