Finding the Fourth Proportional to 236,346,331.70, 326,212,357.30 and 138,592,680.50
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Solution
The fourth proportional to 236,346,331.70, 326,212,357.30 and 138,592,680.50 is: 191,289,810.53
Step by Step Solution
- Step 1: Write the proportion equation
236,346,331.70 : 326,212,357.30 = 138,592,680.50 : x - Step 2: Convert to fraction form
236,346,331.70/326,212,357.30 = 138,592,680.50/x - Step 3: Cross multiply
236,346,331.70x = 326,212,357.30 × 138,592,680.50 - Step 4: Simplify right side
236,346,331.70x = 45,210,645,010,430,744 - Step 5: Solve for x
x = 45,210,645,010,430,744/236,346,331.70 - Step 6: Final answer
x = 191,289,810.53
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.