Finding the Fourth Proportional to 957,107,319.60, 1,435,660,979.40 and 819,357,812.40
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Solution
The fourth proportional to 957,107,319.60, 1,435,660,979.40 and 819,357,812.40 is: 1,229,036,718.60
Step by Step Solution
- Step 1: Write the proportion equation
957,107,319.60 : 1,435,660,979.40 = 819,357,812.40 : x - Step 2: Convert to fraction form
957,107,319.60/1,435,660,979.40 = 819,357,812.40/x - Step 3: Cross multiply
957,107,319.60x = 1,435,660,979.40 × 819,357,812.40 - Step 4: Simplify right side
957,107,319.60x = 1,176,320,039,429,225,472 - Step 5: Solve for x
x = 1,176,320,039,429,225,472/957,107,319.60 - Step 6: Final answer
x = 1,229,036,718.60
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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.