Finding the Fourth Proportional to 28,828,479.09, 39,826,512.77 and 18,928,848.63
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Solution
The fourth proportional to 28,828,479.09, 39,826,512.77 and 18,928,848.63 is: 26,150,183.96
Step by Step Solution
- Step 1: Write the proportion equation
28,828,479.09 : 39,826,512.77 = 18,928,848.63 : x - Step 2: Convert to fraction form
28,828,479.09/39,826,512.77 = 18,928,848.63/x - Step 3: Cross multiply
28,828,479.09x = 39,826,512.77 × 18,928,848.63 - Step 4: Simplify right side
28,828,479.09x = 753,870,031,589,447.75 - Step 5: Solve for x
x = 753,870,031,589,447.75/28,828,479.09 - Step 6: Final answer
x = 26,150,183.96
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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.