Finding the Fourth Proportional to 14,247,510.57, 19,661,581.40 and 7,721,139.99
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Solution
The fourth proportional to 14,247,510.57, 19,661,581.40 and 7,721,139.99 is: 10,655,182.30
Step by Step Solution
- Step 1: Write the proportion equation
14,247,510.57 : 19,661,581.40 = 7,721,139.99 : x - Step 2: Convert to fraction form
14,247,510.57/19,661,581.40 = 7,721,139.99/x - Step 3: Cross multiply
14,247,510.57x = 19,661,581.40 × 7,721,139.99 - Step 4: Simplify right side
14,247,510.57x = 151,809,822,482,636.97 - Step 5: Solve for x
x = 151,809,822,482,636.97/14,247,510.57 - Step 6: Final answer
x = 10,655,182.30
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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.