Finding the Fourth Proportional to 479,312,197.80, 718,968,296.70 and 246,859,904.40
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Solution
The fourth proportional to 479,312,197.80, 718,968,296.70 and 246,859,904.40 is: 370,289,856.60
Step by Step Solution
- Step 1: Write the proportion equation
479,312,197.80 : 718,968,296.70 = 246,859,904.40 : x - Step 2: Convert to fraction form
479,312,197.80/718,968,296.70 = 246,859,904.40/x - Step 3: Cross multiply
479,312,197.80x = 718,968,296.70 × 246,859,904.40 - Step 4: Simplify right side
479,312,197.80x = 177,484,444,989,992,864 - Step 5: Solve for x
x = 177,484,444,989,992,864/479,312,197.80 - Step 6: Final answer
x = 370,289,856.60
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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.