Finding the Fourth Proportional to 81,964,390.10, 122,911,588.67 and 47,444,619.14
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Solution
The fourth proportional to 81,964,390.10, 122,911,588.67 and 47,444,619.14 is: 71,146,671.20
Step by Step Solution
- Step 1: Write the proportion equation
81,964,390.10 : 122,911,588.67 = 47,444,619.14 : x - Step 2: Convert to fraction form
81,964,390.10/122,911,588.67 = 47,444,619.14/x - Step 3: Cross multiply
81,964,390.10x = 122,911,588.67 × 47,444,619.14 - Step 4: Simplify right side
81,964,390.10x = 5,831,493,512,216,740 - Step 5: Solve for x
x = 5,831,493,512,216,740/81,964,390.10 - Step 6: Final answer
x = 71,146,671.20
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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.