Finding the Fourth Proportional to 420,052,505.99, 630,078,758.99 and 113,344,126.79
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Solution
The fourth proportional to 420,052,505.99, 630,078,758.99 and 113,344,126.79 is: 170,016,190.19
Step by Step Solution
- Step 1: Write the proportion equation
420,052,505.99 : 630,078,758.99 = 113,344,126.79 : x - Step 2: Convert to fraction form
420,052,505.99/630,078,758.99 = 113,344,126.79/x - Step 3: Cross multiply
420,052,505.99x = 630,078,758.99 × 113,344,126.79 - Step 4: Simplify right side
420,052,505.99x = 71,415,726,746,586,320 - Step 5: Solve for x
x = 71,415,726,746,586,320/420,052,505.99 - Step 6: Final answer
x = 170,016,190.19
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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.