Finding the Fourth Proportional to 98,991,405.18, 136,546,000.36 and 58,728,895.56
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Solution
The fourth proportional to 98,991,405.18, 136,546,000.36 and 58,728,895.56 is: 81,009,010.63
Step by Step Solution
- Step 1: Write the proportion equation
98,991,405.18 : 136,546,000.36 = 58,728,895.56 : x - Step 2: Convert to fraction form
98,991,405.18/136,546,000.36 = 58,728,895.56/x - Step 3: Cross multiply
98,991,405.18x = 136,546,000.36 × 58,728,895.56 - Step 4: Simplify right side
98,991,405.18x = 8,019,195,794,131,340 - Step 5: Solve for x
x = 8,019,195,794,131,340/98,991,405.18 - Step 6: Final answer
x = 81,009,010.63
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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.