Finding the Fourth Proportional to 55,620,346.17, 76,749,021.75 and 30,495,844.26
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Solution
The fourth proportional to 55,620,346.17, 76,749,021.75 and 30,495,844.26 is: 42,080,396.39
Step by Step Solution
- Step 1: Write the proportion equation
55,620,346.17 : 76,749,021.75 = 30,495,844.26 : x - Step 2: Convert to fraction form
55,620,346.17/76,749,021.75 = 30,495,844.26/x - Step 3: Cross multiply
55,620,346.17x = 76,749,021.75 × 30,495,844.26 - Step 4: Simplify right side
55,620,346.17x = 2,340,526,214,395,353 - Step 5: Solve for x
x = 2,340,526,214,395,353/55,620,346.17 - Step 6: Final answer
x = 42,080,396.39
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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.