Finding the Fourth Proportional to 3,907,990.67, 5,386,293.95 and 2,598,903.05
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Solution
The fourth proportional to 3,907,990.67, 5,386,293.95 and 2,598,903.05 is: 3,582,008.49
Step by Step Solution
- Step 1: Write the proportion equation
3,907,990.67 : 5,386,293.95 = 2,598,903.05 : x - Step 2: Convert to fraction form
3,907,990.67/5,386,293.95 = 2,598,903.05/x - Step 3: Cross multiply
3,907,990.67x = 5,386,293.95 × 2,598,903.05 - Step 4: Simplify right side
3,907,990.67x = 13,998,455,734,925.56 - Step 5: Solve for x
x = 13,998,455,734,925.56/3,907,990.67 - Step 6: Final answer
x = 3,582,008.49
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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.