Finding the Fourth Proportional to 11,590,991.79, 15,996,313.53 and 6,696,420.18
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Solution
The fourth proportional to 11,590,991.79, 15,996,313.53 and 6,696,420.18 is: 9,241,490.17
Step by Step Solution
- Step 1: Write the proportion equation
11,590,991.79 : 15,996,313.53 = 6,696,420.18 : x - Step 2: Convert to fraction form
11,590,991.79/15,996,313.53 = 6,696,420.18/x - Step 3: Cross multiply
11,590,991.79x = 15,996,313.53 × 6,696,420.18 - Step 4: Simplify right side
11,590,991.79x = 107,118,036,727,899.03 - Step 5: Solve for x
x = 107,118,036,727,899.03/11,590,991.79 - Step 6: Final answer
x = 9,241,490.17
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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.