Finding the Fourth Proportional to 5,395,142.80, 7,445,208.98 and 2,947,701.18
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Solution
The fourth proportional to 5,395,142.80, 7,445,208.98 and 2,947,701.18 is: 4,067,779.50
Step by Step Solution
- Step 1: Write the proportion equation
5,395,142.80 : 7,445,208.98 = 2,947,701.18 : x - Step 2: Convert to fraction form
5,395,142.80/7,445,208.98 = 2,947,701.18/x - Step 3: Cross multiply
5,395,142.80x = 7,445,208.98 × 2,947,701.18 - Step 4: Simplify right side
5,395,142.80x = 21,946,251,295,692.60 - Step 5: Solve for x
x = 21,946,251,295,692.60/5,395,142.80 - Step 6: Final answer
x = 4,067,779.50
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1.5x scale
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.