Finding the Fourth Proportional to 143,229,773.97, 214,416,435.56 and 87,722,835.12
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Solution
The fourth proportional to 143,229,773.97, 214,416,435.56 and 87,722,835.12 is: 131,321,980.77
Step by Step Solution
- Step 1: Write the proportion equation
143,229,773.97 : 214,416,435.56 = 87,722,835.12 : x - Step 2: Convert to fraction form
143,229,773.97/214,416,435.56 = 87,722,835.12/x - Step 3: Cross multiply
143,229,773.97x = 214,416,435.56 × 87,722,835.12 - Step 4: Simplify right side
143,229,773.97x = 18,809,217,623,209,372 - Step 5: Solve for x
x = 18,809,217,623,209,372/143,229,773.97 - Step 6: Final answer
x = 131,321,980.77
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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.