Finding the Fourth Proportional to 665,530,242.99, 918,458,777.91 and 368,167,358.34
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Solution
The fourth proportional to 665,530,242.99, 918,458,777.91 and 368,167,358.34 is: 508,085,914.31
Step by Step Solution
- Step 1: Write the proportion equation
665,530,242.99 : 918,458,777.91 = 368,167,358.34 : x - Step 2: Convert to fraction form
665,530,242.99/918,458,777.91 = 368,167,358.34/x - Step 3: Cross multiply
665,530,242.99x = 918,458,777.91 × 368,167,358.34 - Step 4: Simplify right side
665,530,242.99x = 338,146,542,007,309,440 - Step 5: Solve for x
x = 338,146,542,007,309,440/665,530,242.99 - Step 6: Final answer
x = 508,085,914.31
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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.