Finding the Fourth Proportional to 38,557,950.20, 57,931,403.70 and 28,992,012.20
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Solution
The fourth proportional to 38,557,950.20, 57,931,403.70 and 28,992,012.20 is: 43,559,057.32
Step by Step Solution
- Step 1: Write the proportion equation
38,557,950.20 : 57,931,403.70 = 28,992,012.20 : x - Step 2: Convert to fraction form
38,557,950.20/57,931,403.70 = 28,992,012.20/x - Step 3: Cross multiply
38,557,950.20x = 57,931,403.70 × 28,992,012.20 - Step 4: Simplify right side
38,557,950.20x = 1,679,547,962,833,525.25 - Step 5: Solve for x
x = 1,679,547,962,833,525.25/38,557,950.20 - Step 6: Final answer
x = 43,559,057.32
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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.