Finding the Fourth Proportional to 126,388,720.14, 174,421,820.37 and 70,634,138.93
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Solution
The fourth proportional to 126,388,720.14, 174,421,820.37 and 70,634,138.93 is: 97,478,122.09
Step by Step Solution
- Step 1: Write the proportion equation
126,388,720.14 : 174,421,820.37 = 70,634,138.93 : x - Step 2: Convert to fraction form
126,388,720.14/174,421,820.37 = 70,634,138.93/x - Step 3: Cross multiply
126,388,720.14x = 174,421,820.37 × 70,634,138.93 - Step 4: Simplify right side
126,388,720.14x = 12,320,135,092,438,086 - Step 5: Solve for x
x = 12,320,135,092,438,086/126,388,720.14 - Step 6: Final answer
x = 97,478,122.09
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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.