Finding the Fourth Proportional to 386,350,307.96, 533,115,032.64 and 261,174,860.12
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Solution
The fourth proportional to 386,350,307.96, 533,115,032.64 and 261,174,860.12 is: 360,388,593.48
Step by Step Solution
- Step 1: Write the proportion equation
386,350,307.96 : 533,115,032.64 = 261,174,860.12 : x - Step 2: Convert to fraction form
386,350,307.96/533,115,032.64 = 261,174,860.12/x - Step 3: Cross multiply
386,350,307.96x = 533,115,032.64 × 261,174,860.12 - Step 4: Simplify right side
386,350,307.96x = 139,236,244,077,621,232 - Step 5: Solve for x
x = 139,236,244,077,621,232/386,350,307.96 - Step 6: Final answer
x = 360,388,593.48
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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.