Finding the Fourth Proportional to 13,641,958.05, 18,826,347.69 and 7,447,335.06
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Solution
The fourth proportional to 13,641,958.05, 18,826,347.69 and 7,447,335.06 is: 10,277,565.63
Step by Step Solution
- Step 1: Write the proportion equation
13,641,958.05 : 18,826,347.69 = 7,447,335.06 : x - Step 2: Convert to fraction form
13,641,958.05/18,826,347.69 = 7,447,335.06/x - Step 3: Cross multiply
13,641,958.05x = 18,826,347.69 × 7,447,335.06 - Step 4: Simplify right side
13,641,958.05x = 140,206,119,203,487.02 - Step 5: Solve for x
x = 140,206,119,203,487.02/13,641,958.05 - Step 6: Final answer
x = 10,277,565.63
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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.