Finding the Fourth Proportional to 105,644,390.18, 158,330,195.91 and 47,309,357.18
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Solution
The fourth proportional to 105,644,390.18, 158,330,195.91 and 47,309,357.18 is: 70,902,958.30
Step by Step Solution
- Step 1: Write the proportion equation
105,644,390.18 : 158,330,195.91 = 47,309,357.18 : x - Step 2: Convert to fraction form
105,644,390.18/158,330,195.91 = 47,309,357.18/x - Step 3: Cross multiply
105,644,390.18x = 158,330,195.91 × 47,309,357.18 - Step 4: Simplify right side
105,644,390.18x = 7,490,499,791,081,390 - Step 5: Solve for x
x = 7,490,499,791,081,390/105,644,390.18 - Step 6: Final answer
x = 70,902,958.30
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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.