Finding the Fourth Proportional to 746,532,908.40, 1,119,967,324.20 and 439,667,065.20
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Solution
The fourth proportional to 746,532,908.40, 1,119,967,324.20 and 439,667,065.20 is: 659,599,518.00
Step by Step Solution
- Step 1: Write the proportion equation
746,532,908.40 : 1,119,967,324.20 = 439,667,065.20 : x - Step 2: Convert to fraction form
746,532,908.40/1,119,967,324.20 = 439,667,065.20/x - Step 3: Cross multiply
746,532,908.40x = 1,119,967,324.20 × 439,667,065.20 - Step 4: Simplify right side
746,532,908.40x = 492,412,746,550,910,976 - Step 5: Solve for x
x = 492,412,746,550,910,976/746,532,908.40 - Step 6: Final answer
x = 659,599,518.00
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1.5x scale
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.