Finding the Fourth Proportional to 128,933,134.20, 193,399,701.30 and 88,118,465.40
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Solution
The fourth proportional to 128,933,134.20, 193,399,701.30 and 88,118,465.40 is: 132,177,698.10
Step by Step Solution
- Step 1: Write the proportion equation
128,933,134.20 : 193,399,701.30 = 88,118,465.40 : x - Step 2: Convert to fraction form
128,933,134.20/193,399,701.30 = 88,118,465.40/x - Step 3: Cross multiply
128,933,134.20x = 193,399,701.30 × 88,118,465.40 - Step 4: Simplify right side
128,933,134.20x = 17,042,084,887,374,388 - Step 5: Solve for x
x = 17,042,084,887,374,388/128,933,134.20 - Step 6: Final answer
x = 132,177,698.10
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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.