Finding the Fourth Proportional to 57,623,579.01, 79,521,155.87 and 31,517,538.62
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Solution
The fourth proportional to 57,623,579.01, 79,521,155.87 and 31,517,538.62 is: 43,494,540.67
Step by Step Solution
- Step 1: Write the proportion equation
57,623,579.01 : 79,521,155.87 = 31,517,538.62 : x - Step 2: Convert to fraction form
57,623,579.01/79,521,155.87 = 31,517,538.62/x - Step 3: Cross multiply
57,623,579.01x = 79,521,155.87 × 31,517,538.62 - Step 4: Simplify right side
57,623,579.01x = 2,506,311,100,684,571 - Step 5: Solve for x
x = 2,506,311,100,684,571/57,623,579.01 - Step 6: Final answer
x = 43,494,540.67
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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.