Finding the Fourth Proportional to 20,272,839.66, 27,969,669.63 and 11,564,886.06
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Solution
The fourth proportional to 20,272,839.66, 27,969,669.63 and 11,564,886.06 is: 15,955,635.61
Step by Step Solution
- Step 1: Write the proportion equation
20,272,839.66 : 27,969,669.63 = 11,564,886.06 : x - Step 2: Convert to fraction form
20,272,839.66/27,969,669.63 = 11,564,886.06/x - Step 3: Cross multiply
20,272,839.66x = 27,969,669.63 × 11,564,886.06 - Step 4: Simplify right side
20,272,839.66x = 323,466,042,406,792.38 - Step 5: Solve for x
x = 323,466,042,406,792.38/20,272,839.66 - Step 6: Final answer
x = 15,955,635.61
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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.