Finding the Fourth Proportional to 15,502,626.96, 21,393,470.52 and 8,626,991.28
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Solution
The fourth proportional to 15,502,626.96, 21,393,470.52 and 8,626,991.28 is: 11,905,161.89
Step by Step Solution
- Step 1: Write the proportion equation
15,502,626.96 : 21,393,470.52 = 8,626,991.28 : x - Step 2: Convert to fraction form
15,502,626.96/21,393,470.52 = 8,626,991.28/x - Step 3: Cross multiply
15,502,626.96x = 21,393,470.52 × 8,626,991.28 - Step 4: Simplify right side
15,502,626.96x = 184,561,283,624,977.06 - Step 5: Solve for x
x = 184,561,283,624,977.06/15,502,626.96 - Step 6: Final answer
x = 11,905,161.89
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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.