Finding the Fourth Proportional to 38,415,865.83, 57,623,897.21 and 15,696,762.99
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Solution
The fourth proportional to 38,415,865.83, 57,623,897.21 and 15,696,762.99 is: 23,545,184.72
Step by Step Solution
- Step 1: Write the proportion equation
38,415,865.83 : 57,623,897.21 = 15,696,762.99 : x - Step 2: Convert to fraction form
38,415,865.83/57,623,897.21 = 15,696,762.99/x - Step 3: Cross multiply
38,415,865.83x = 57,623,897.21 × 15,696,762.99 - Step 4: Simplify right side
38,415,865.83x = 904,508,656,987,008.38 - Step 5: Solve for x
x = 904,508,656,987,008.38/38,415,865.83 - Step 6: Final answer
x = 23,545,184.72
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.