Finding the Fourth Proportional to 28,758,693.75, 43,138,926.36 and 12,576,315.30
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Solution
The fourth proportional to 28,758,693.75, 43,138,926.36 and 12,576,315.30 is: 18,864,860.29
Step by Step Solution
- Step 1: Write the proportion equation
28,758,693.75 : 43,138,926.36 = 12,576,315.30 : x - Step 2: Convert to fraction form
28,758,693.75/43,138,926.36 = 12,576,315.30/x - Step 3: Cross multiply
28,758,693.75x = 43,138,926.36 × 12,576,315.30 - Step 4: Simplify right side
28,758,693.75x = 542,528,739,606,841.31 - Step 5: Solve for x
x = 542,528,739,606,841.31/28,758,693.75 - Step 6: Final answer
x = 18,864,860.29
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.