Finding the Fourth Proportional to 154,324,587.18, 212,871,058.64 and 91,556,246.20
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Solution
The fourth proportional to 154,324,587.18, 212,871,058.64 and 91,556,246.20 is: 126,290,148.64
Step by Step Solution
- Step 1: Write the proportion equation
154,324,587.18 : 212,871,058.64 = 91,556,246.20 : x - Step 2: Convert to fraction form
154,324,587.18/212,871,058.64 = 91,556,246.20/x - Step 3: Cross multiply
154,324,587.18x = 212,871,058.64 × 91,556,246.20 - Step 4: Simplify right side
154,324,587.18x = 19,489,675,053,698,476 - Step 5: Solve for x
x = 19,489,675,053,698,476/154,324,587.18 - Step 6: Final answer
x = 126,290,148.64
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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.