Finding the Fourth Proportional to 12,863,910.12, 19,270,638.54 and 7,461,210.12
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Solution
The fourth proportional to 12,863,910.12, 19,270,638.54 and 7,461,210.12 is: 11,177,183.45
Step by Step Solution
- Step 1: Write the proportion equation
12,863,910.12 : 19,270,638.54 = 7,461,210.12 : x - Step 2: Convert to fraction form
12,863,910.12/19,270,638.54 = 7,461,210.12/x - Step 3: Cross multiply
12,863,910.12x = 19,270,638.54 × 7,461,210.12 - Step 4: Simplify right side
12,863,910.12x = 143,782,283,293,510.03 - Step 5: Solve for x
x = 143,782,283,293,510.03/12,863,910.12 - Step 6: Final answer
x = 11,177,183.45
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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.