Finding the Fourth Proportional to 71,692,705.20, 107,339,992.20 and 69,702,049.20
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Solution
The fourth proportional to 71,692,705.20, 107,339,992.20 and 69,702,049.20 is: 104,359,535.56
Step by Step Solution
- Step 1: Write the proportion equation
71,692,705.20 : 107,339,992.20 = 69,702,049.20 : x - Step 2: Convert to fraction form
71,692,705.20/107,339,992.20 = 69,702,049.20/x - Step 3: Cross multiply
71,692,705.20x = 107,339,992.20 × 69,702,049.20 - Step 4: Simplify right side
71,692,705.20x = 7,481,817,417,452,017 - Step 5: Solve for x
x = 7,481,817,417,452,017/71,692,705.20 - Step 6: Final answer
x = 104,359,535.56
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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.