Finding the Fourth Proportional to 3,886,756.08, 5,363,732.76 and 2,167,987.92
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Solution
The fourth proportional to 3,886,756.08, 5,363,732.76 and 2,167,987.92 is: 2,991,828.56
Step by Step Solution
- Step 1: Write the proportion equation
3,886,756.08 : 5,363,732.76 = 2,167,987.92 : x - Step 2: Convert to fraction form
3,886,756.08/5,363,732.76 = 2,167,987.92/x - Step 3: Cross multiply
3,886,756.08x = 5,363,732.76 × 2,167,987.92 - Step 4: Simplify right side
3,886,756.08x = 11,628,507,829,788.26 - Step 5: Solve for x
x = 11,628,507,829,788.26/3,886,756.08 - Step 6: Final answer
x = 2,991,828.56
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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.