Finding the Fourth Proportional to 11,355,173.12, 15,669,937.32 and 6,460,289.87
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Solution
The fourth proportional to 11,355,173.12, 15,669,937.32 and 6,460,289.87 is: 8,915,085.32
Step by Step Solution
- Step 1: Write the proportion equation
11,355,173.12 : 15,669,937.32 = 6,460,289.87 : x - Step 2: Convert to fraction form
11,355,173.12/15,669,937.32 = 6,460,289.87/x - Step 3: Cross multiply
11,355,173.12x = 15,669,937.32 × 6,460,289.87 - Step 4: Simplify right side
11,355,173.12x = 101,232,337,229,355.17 - Step 5: Solve for x
x = 101,232,337,229,355.17/11,355,173.12 - Step 6: Final answer
x = 8,915,085.32
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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.