Finding the Fourth Proportional to 38,415,878.64, 57,623,916.36 and 15,696,775.80
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Solution
The fourth proportional to 38,415,878.64, 57,623,916.36 and 15,696,775.80 is: 23,545,203.91
Step by Step Solution
- Step 1: Write the proportion equation
38,415,878.64 : 57,623,916.36 = 15,696,775.80 : x - Step 2: Convert to fraction form
38,415,878.64/57,623,916.36 = 15,696,775.80/x - Step 3: Cross multiply
38,415,878.64x = 57,623,916.36 × 15,696,775.80 - Step 4: Simplify right side
38,415,878.64x = 904,509,695,820,872.12 - Step 5: Solve for x
x = 904,509,695,820,872.12/38,415,878.64 - Step 6: Final answer
x = 23,545,203.91
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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.