Finding the Fourth Proportional to 236,346,289.82, 326,212,299.54 and 138,592,638.62
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Solution
The fourth proportional to 236,346,289.82, 326,212,299.54 and 138,592,638.62 is: 191,289,752.75
Step by Step Solution
- Step 1: Write the proportion equation
236,346,289.82 : 326,212,299.54 = 138,592,638.62 : x - Step 2: Convert to fraction form
236,346,289.82/326,212,299.54 = 138,592,638.62/x - Step 3: Cross multiply
236,346,289.82x = 326,212,299.54 × 138,592,638.62 - Step 4: Simplify right side
236,346,289.82x = 45,210,623,343,546,416 - Step 5: Solve for x
x = 45,210,623,343,546,416/236,346,289.82 - Step 6: Final answer
x = 191,289,752.75
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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.