Finding the Fourth Proportional to 463,672,821.20, 695,509,231.80 and 248,681,973.20
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Solution
The fourth proportional to 463,672,821.20, 695,509,231.80 and 248,681,973.20 is: 373,022,959.80
Step by Step Solution
- Step 1: Write the proportion equation
463,672,821.20 : 695,509,231.80 = 248,681,973.20 : x - Step 2: Convert to fraction form
463,672,821.20/695,509,231.80 = 248,681,973.20/x - Step 3: Cross multiply
463,672,821.20x = 695,509,231.80 × 248,681,973.20 - Step 4: Simplify right side
463,672,821.20x = 172,960,608,142,840,160 - Step 5: Solve for x
x = 172,960,608,142,840,160/463,672,821.20 - Step 6: Final answer
x = 373,022,959.80
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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.