Finding the Fourth Proportional to 542,621,158.24, 748,801,161.84 and 307,693,268.32
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Solution
The fourth proportional to 542,621,158.24, 748,801,161.84 and 307,693,268.32 is: 424,607,616.77
Step by Step Solution
- Step 1: Write the proportion equation
542,621,158.24 : 748,801,161.84 = 307,693,268.32 : x - Step 2: Convert to fraction form
542,621,158.24/748,801,161.84 = 307,693,268.32/x - Step 3: Cross multiply
542,621,158.24x = 748,801,161.84 × 307,693,268.32 - Step 4: Simplify right side
542,621,158.24x = 230,401,076,808,362,880 - Step 5: Solve for x
x = 230,401,076,808,362,880/542,621,158.24 - Step 6: Final answer
x = 424,607,616.77
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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.