Finding the Fourth Proportional to 13,577,579.42, 18,736,929.50 and 7,382,628.41
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Solution
The fourth proportional to 13,577,579.42, 18,736,929.50 and 7,382,628.41 is: 10,187,956.45
Step by Step Solution
- Step 1: Write the proportion equation
13,577,579.42 : 18,736,929.50 = 7,382,628.41 : x - Step 2: Convert to fraction form
13,577,579.42/18,736,929.50 = 7,382,628.41/x - Step 3: Cross multiply
13,577,579.42x = 18,736,929.50 × 7,382,628.41 - Step 4: Simplify right side
13,577,579.42x = 138,327,787,912,269.31 - Step 5: Solve for x
x = 138,327,787,912,269.31/13,577,579.42 - Step 6: Final answer
x = 10,187,956.45
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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.