Finding the Fourth Proportional to 432,740,571.44, 649,117,971.72 and 121,855,665.20
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Solution
The fourth proportional to 432,740,571.44, 649,117,971.72 and 121,855,665.20 is: 182,785,501.19
Step by Step Solution
- Step 1: Write the proportion equation
432,740,571.44 : 649,117,971.72 = 121,855,665.20 : x - Step 2: Convert to fraction form
432,740,571.44/649,117,971.72 = 121,855,665.20/x - Step 3: Cross multiply
432,740,571.44x = 649,117,971.72 × 121,855,665.20 - Step 4: Simplify right side
432,740,571.44x = 79,098,702,237,215,392 - Step 5: Solve for x
x = 79,098,702,237,215,392/432,740,571.44 - Step 6: Final answer
x = 182,785,501.19
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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.