Finding the Fourth Proportional to 12,745,633.05, 19,118,432.21 and 5,918,473.02
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Solution
The fourth proportional to 12,745,633.05, 19,118,432.21 and 5,918,473.02 is: 8,877,701.47
Step by Step Solution
- Step 1: Write the proportion equation
12,745,633.05 : 19,118,432.21 = 5,918,473.02 : x - Step 2: Convert to fraction form
12,745,633.05/19,118,432.21 = 5,918,473.02/x - Step 3: Cross multiply
12,745,633.05x = 19,118,432.21 × 5,918,473.02 - Step 4: Simplify right side
12,745,633.05x = 113,151,925,294,977.14 - Step 5: Solve for x
x = 113,151,925,294,977.14/12,745,633.05 - Step 6: Final answer
x = 8,877,701.47
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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.