Finding the Fourth Proportional to 620,039,816.10, 929,736,781.44 and 292,427,365.08
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Solution
The fourth proportional to 620,039,816.10, 929,736,781.44 and 292,427,365.08 is: 438,488,739.20
Step by Step Solution
- Step 1: Write the proportion equation
620,039,816.10 : 929,736,781.44 = 292,427,365.08 : x - Step 2: Convert to fraction form
620,039,816.10/929,736,781.44 = 292,427,365.08/x - Step 3: Cross multiply
620,039,816.10x = 929,736,781.44 × 292,427,365.08 - Step 4: Simplify right side
620,039,816.10x = 271,880,477,214,459,040 - Step 5: Solve for x
x = 271,880,477,214,459,040/620,039,816.10 - Step 6: Final answer
x = 438,488,739.20
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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.