Finding the Fourth Proportional to 105,190,961.99, 157,786,443.62 and 28,513,989.91
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Solution
The fourth proportional to 105,190,961.99, 157,786,443.62 and 28,513,989.91 is: 42,770,985.03
Step by Step Solution
- Step 1: Write the proportion equation
105,190,961.99 : 157,786,443.62 = 28,513,989.91 : x - Step 2: Convert to fraction form
105,190,961.99/157,786,443.62 = 28,513,989.91/x - Step 3: Cross multiply
105,190,961.99x = 157,786,443.62 × 28,513,989.91 - Step 4: Simplify right side
105,190,961.99x = 4,499,121,060,383,962 - Step 5: Solve for x
x = 4,499,121,060,383,962/105,190,961.99 - Step 6: Final answer
x = 42,770,985.03
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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.