Finding the Fourth Proportional to 99,649,515.60, 149,474,273.40 and 61,186,309.20
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Solution
The fourth proportional to 99,649,515.60, 149,474,273.40 and 61,186,309.20 is: 91,779,463.80
Step by Step Solution
- Step 1: Write the proportion equation
99,649,515.60 : 149,474,273.40 = 61,186,309.20 : x - Step 2: Convert to fraction form
99,649,515.60/149,474,273.40 = 61,186,309.20/x - Step 3: Cross multiply
99,649,515.60x = 149,474,273.40 × 61,186,309.20 - Step 4: Simplify right side
99,649,515.60x = 9,145,779,109,697,736 - Step 5: Solve for x
x = 9,145,779,109,697,736/99,649,515.60 - Step 6: Final answer
x = 91,779,463.80
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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.