Finding the Fourth Proportional to 872,987,815.48, 1,204,543,345.62 and 501,638,102.32
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Solution
The fourth proportional to 872,987,815.48, 1,204,543,345.62 and 501,638,102.32 is: 692,157,241.31
Step by Step Solution
- Step 1: Write the proportion equation
872,987,815.48 : 1,204,543,345.62 = 501,638,102.32 : x - Step 2: Convert to fraction form
872,987,815.48/1,204,543,345.62 = 501,638,102.32/x - Step 3: Cross multiply
872,987,815.48x = 1,204,543,345.62 × 501,638,102.32 - Step 4: Simplify right side
872,987,815.48x = 604,244,838,059,000,576 - Step 5: Solve for x
x = 604,244,838,059,000,576/872,987,815.48 - Step 6: Final answer
x = 692,157,241.31
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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.