Finding the Fourth Proportional to 53,242,058.76, 79,871,912.66 and 18,689,495.28
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Solution
The fourth proportional to 53,242,058.76, 79,871,912.66 and 18,689,495.28 is: 28,037,340.58
Step by Step Solution
- Step 1: Write the proportion equation
53,242,058.76 : 79,871,912.66 = 18,689,495.28 : x - Step 2: Convert to fraction form
53,242,058.76/79,871,912.66 = 18,689,495.28/x - Step 3: Cross multiply
53,242,058.76x = 79,871,912.66 × 18,689,495.28 - Step 4: Simplify right side
53,242,058.76x = 1,492,765,734,663,642.25 - Step 5: Solve for x
x = 1,492,765,734,663,642.25/53,242,058.76 - Step 6: Final answer
x = 28,037,340.58
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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.