Finding the Fourth Proportional to 68,103,641.68, 93,985,010.30 and 37,165,803.72
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Solution
The fourth proportional to 68,103,641.68, 93,985,010.30 and 37,165,803.72 is: 51,289,892.28
Step by Step Solution
- Step 1: Write the proportion equation
68,103,641.68 : 93,985,010.30 = 37,165,803.72 : x - Step 2: Convert to fraction form
68,103,641.68/93,985,010.30 = 37,165,803.72/x - Step 3: Cross multiply
68,103,641.68x = 93,985,010.30 × 37,165,803.72 - Step 4: Simplify right side
68,103,641.68x = 3,493,028,445,431,978 - Step 5: Solve for x
x = 3,493,028,445,431,978/68,103,641.68 - Step 6: Final answer
x = 51,289,892.28
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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.