Finding the Fourth Proportional to 71,528,715.36, 107,294,058 and 20,410,719.12
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Solution
The fourth proportional to 71,528,715.36, 107,294,058 and 20,410,719.12 is: 30,616,359.74
Step by Step Solution
- Step 1: Write the proportion equation
71,528,715.36 : 107,294,058 = 20,410,719.12 : x - Step 2: Convert to fraction form
71,528,715.36/107,294,058 = 20,410,719.12/x - Step 3: Cross multiply
71,528,715.36x = 107,294,058 × 20,410,719.12 - Step 4: Simplify right side
71,528,715.36x = 2,189,948,881,082,989 - Step 5: Solve for x
x = 2,189,948,881,082,989/71,528,715.36 - Step 6: Final answer
x = 30,616,359.74
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1.5x scale
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.