Finding the Fourth Proportional to 19,695,970.38, 27,175,652.20 and 11,545,633.74
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Solution
The fourth proportional to 19,695,970.38, 27,175,652.20 and 11,545,633.74 is: 15,930,168.50
Step by Step Solution
- Step 1: Write the proportion equation
19,695,970.38 : 27,175,652.20 = 11,545,633.74 : x - Step 2: Convert to fraction form
19,695,970.38/27,175,652.20 = 11,545,633.74/x - Step 3: Cross multiply
19,695,970.38x = 27,175,652.20 × 11,545,633.74 - Step 4: Simplify right side
19,695,970.38x = 313,760,126,946,825.25 - Step 5: Solve for x
x = 313,760,126,946,825.25/19,695,970.38 - Step 6: Final answer
x = 15,930,168.50
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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.