Finding the Fourth Proportional to 368,135,002.08, 508,025,949.32 and 203,122,579.68
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Solution
The fourth proportional to 368,135,002.08, 508,025,949.32 and 203,122,579.68 is: 280,308,964.88
Step by Step Solution
- Step 1: Write the proportion equation
368,135,002.08 : 508,025,949.32 = 203,122,579.68 : x - Step 2: Convert to fraction form
368,135,002.08/508,025,949.32 = 203,122,579.68/x - Step 3: Cross multiply
368,135,002.08x = 508,025,949.32 × 203,122,579.68 - Step 4: Simplify right side
368,135,002.08x = 103,191,541,369,243,728 - Step 5: Solve for x
x = 103,191,541,369,243,728/368,135,002.08 - Step 6: Final answer
x = 280,308,964.88
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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.