Finding the Fourth Proportional to 12,219,220.36, 16,862,535.24 and 6,712,951.92
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Solution
The fourth proportional to 12,219,220.36, 16,862,535.24 and 6,712,951.92 is: 9,263,879.77
Step by Step Solution
- Step 1: Write the proportion equation
12,219,220.36 : 16,862,535.24 = 6,712,951.92 : x - Step 2: Convert to fraction form
12,219,220.36/16,862,535.24 = 6,712,951.92/x - Step 3: Cross multiply
12,219,220.36x = 16,862,535.24 × 6,712,951.92 - Step 4: Simplify right side
12,219,220.36x = 113,197,388,315,425.66 - Step 5: Solve for x
x = 113,197,388,315,425.66/12,219,220.36 - Step 6: Final answer
x = 9,263,879.77
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1.5x scale
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.