Finding the Fourth Proportional to 85,599,623.70, 128,409,174.99 and 31,037,907.06
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Solution
The fourth proportional to 85,599,623.70, 128,409,174.99 and 31,037,907.06 is: 46,560,392.05
Step by Step Solution
- Step 1: Write the proportion equation
85,599,623.70 : 128,409,174.99 = 31,037,907.06 : x - Step 2: Convert to fraction form
85,599,623.70/128,409,174.99 = 31,037,907.06/x - Step 3: Cross multiply
85,599,623.70x = 128,409,174.99 × 31,037,907.06 - Step 4: Simplify right side
85,599,623.70x = 3,985,552,038,990,896 - Step 5: Solve for x
x = 3,985,552,038,990,896/85,599,623.70 - Step 6: Final answer
x = 46,560,392.05
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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.