Finding the Fourth Proportional to 74,750,542.40, 112,125,813.60 and 73,490,830.40
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Solution
The fourth proportional to 74,750,542.40, 112,125,813.60 and 73,490,830.40 is: 110,236,245.60
Step by Step Solution
- Step 1: Write the proportion equation
74,750,542.40 : 112,125,813.60 = 73,490,830.40 : x - Step 2: Convert to fraction form
74,750,542.40/112,125,813.60 = 73,490,830.40/x - Step 3: Cross multiply
74,750,542.40x = 112,125,813.60 × 73,490,830.40 - Step 4: Simplify right side
74,750,542.40x = 8,240,219,150,739,614 - Step 5: Solve for x
x = 8,240,219,150,739,614/74,750,542.40 - Step 6: Final answer
x = 110,236,245.60
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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.