Finding the Fourth Proportional to 408,475,309.10, 563,618,832.18 and 243,478,231.34
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Solution
The fourth proportional to 408,475,309.10, 563,618,832.18 and 243,478,231.34 is: 335,954,005.91
Step by Step Solution
- Step 1: Write the proportion equation
408,475,309.10 : 563,618,832.18 = 243,478,231.34 : x - Step 2: Convert to fraction form
408,475,309.10/563,618,832.18 = 243,478,231.34/x - Step 3: Cross multiply
408,475,309.10x = 563,618,832.18 × 243,478,231.34 - Step 4: Simplify right side
408,475,309.10x = 137,228,916,406,284,576 - Step 5: Solve for x
x = 137,228,916,406,284,576/408,475,309.10 - Step 6: Final answer
x = 335,954,005.91
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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.