Finding the Fourth Proportional to 14,343,475.20, 21,521,551.35 and 7,518,416.49
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Solution
The fourth proportional to 14,343,475.20, 21,521,551.35 and 7,518,416.49 is: 11,280,947.20
Step by Step Solution
- Step 1: Write the proportion equation
14,343,475.20 : 21,521,551.35 = 7,518,416.49 : x - Step 2: Convert to fraction form
14,343,475.20/21,521,551.35 = 7,518,416.49/x - Step 3: Cross multiply
14,343,475.20x = 21,521,551.35 × 7,518,416.49 - Step 4: Simplify right side
14,343,475.20x = 161,807,986,415,021.91 - Step 5: Solve for x
x = 161,807,986,415,021.91/14,343,475.20 - Step 6: Final answer
x = 11,280,947.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.