Finding the Fourth Proportional to 193,087,207.80, 289,630,811.70 and 115,488,948.60
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Solution
The fourth proportional to 193,087,207.80, 289,630,811.70 and 115,488,948.60 is: 173,233,422.90
Step by Step Solution
- Step 1: Write the proportion equation
193,087,207.80 : 289,630,811.70 = 115,488,948.60 : x - Step 2: Convert to fraction form
193,087,207.80/289,630,811.70 = 115,488,948.60/x - Step 3: Cross multiply
193,087,207.80x = 289,630,811.70 × 115,488,948.60 - Step 4: Simplify right side
193,087,207.80x = 33,449,157,925,397,576 - Step 5: Solve for x
x = 33,449,157,925,397,576/193,087,207.80 - Step 6: Final answer
x = 173,233,422.90
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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.