Finding the Fourth Proportional to 20,283,598.41, 27,988,269.93 and 11,459,830.09
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Solution
The fourth proportional to 20,283,598.41, 27,988,269.93 and 11,459,830.09 is: 15,812,816.42
Step by Step Solution
- Step 1: Write the proportion equation
20,283,598.41 : 27,988,269.93 = 11,459,830.09 : x - Step 2: Convert to fraction form
20,283,598.41/27,988,269.93 = 11,459,830.09/x - Step 3: Cross multiply
20,283,598.41x = 27,988,269.93 × 11,459,830.09 - Step 4: Simplify right side
20,283,598.41x = 320,740,817,853,557.06 - Step 5: Solve for x
x = 320,740,817,853,557.06/20,283,598.41 - Step 6: Final answer
x = 15,812,816.42
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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.