Finding the Fourth Proportional to 14,278,637.70, 21,417,956.55 and 13,720,624.65
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Solution
The fourth proportional to 14,278,637.70, 21,417,956.55 and 13,720,624.65 is: 20,580,936.98
Step by Step Solution
- Step 1: Write the proportion equation
14,278,637.70 : 21,417,956.55 = 13,720,624.65 : x - Step 2: Convert to fraction form
14,278,637.70/21,417,956.55 = 13,720,624.65/x - Step 3: Cross multiply
14,278,637.70x = 21,417,956.55 × 13,720,624.65 - Step 4: Simplify right side
14,278,637.70x = 293,867,742,592,559 - Step 5: Solve for x
x = 293,867,742,592,559/14,278,637.70 - Step 6: Final answer
x = 20,580,936.98
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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.