Finding the Fourth Proportional to 470,964,585.17, 649,919,657.40 and 259,269,695.21
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Solution
The fourth proportional to 470,964,585.17, 649,919,657.40 and 259,269,695.21 is: 357,785,864.99
Step by Step Solution
- Step 1: Write the proportion equation
470,964,585.17 : 649,919,657.40 = 259,269,695.21 : x - Step 2: Convert to fraction form
470,964,585.17/649,919,657.40 = 259,269,695.21/x - Step 3: Cross multiply
470,964,585.17x = 649,919,657.40 × 259,269,695.21 - Step 4: Simplify right side
470,964,585.17x = 168,504,471,485,085,632 - Step 5: Solve for x
x = 168,504,471,485,085,632/470,964,585.17 - Step 6: Final answer
x = 357,785,864.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.