Finding the Fourth Proportional to 13,645,707.18, 18,828,853.16 and 8,063,176.88
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Solution
The fourth proportional to 13,645,707.18, 18,828,853.16 and 8,063,176.88 is: 11,125,870.67
Step by Step Solution
- Step 1: Write the proportion equation
13,645,707.18 : 18,828,853.16 = 8,063,176.88 : x - Step 2: Convert to fraction form
13,645,707.18/18,828,853.16 = 8,063,176.88/x - Step 3: Cross multiply
13,645,707.18x = 18,828,853.16 × 8,063,176.88 - Step 4: Simplify right side
13,645,707.18x = 151,820,373,342,166.81 - Step 5: Solve for x
x = 151,820,373,342,166.81/13,645,707.18 - Step 6: Final answer
x = 11,125,870.67
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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.