Finding the Fourth Proportional to 14,386,615.74, 19,853,297.38 and 7,860,104.72
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Solution
The fourth proportional to 14,386,615.74, 19,853,297.38 and 7,860,104.72 is: 10,846,817.57
Step by Step Solution
- Step 1: Write the proportion equation
14,386,615.74 : 19,853,297.38 = 7,860,104.72 : x - Step 2: Convert to fraction form
14,386,615.74/19,853,297.38 = 7,860,104.72/x - Step 3: Cross multiply
14,386,615.74x = 19,853,297.38 × 7,860,104.72 - Step 4: Simplify right side
14,386,615.74x = 156,048,996,444,101.62 - Step 5: Solve for x
x = 156,048,996,444,101.62/14,386,615.74 - Step 6: Final answer
x = 10,846,817.57
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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.