Finding the Fourth Proportional to 15,819,347.66, 21,830,503.19 and 9,293,571.99
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Solution
The fourth proportional to 15,819,347.66, 21,830,503.19 and 9,293,571.99 is: 12,825,013.86
Step by Step Solution
- Step 1: Write the proportion equation
15,819,347.66 : 21,830,503.19 = 9,293,571.99 : x - Step 2: Convert to fraction form
15,819,347.66/21,830,503.19 = 9,293,571.99/x - Step 3: Cross multiply
15,819,347.66x = 21,830,503.19 × 9,293,571.99 - Step 4: Simplify right side
15,819,347.66x = 202,883,352,927,721.78 - Step 5: Solve for x
x = 202,883,352,927,721.78/15,819,347.66 - Step 6: Final answer
x = 12,825,013.86
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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.