Finding the Fourth Proportional to 139,363,821.58, 209,032,197.20 and 42,320,369.92
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Solution
The fourth proportional to 139,363,821.58, 209,032,197.20 and 42,320,369.92 is: 63,476,444.68
Step by Step Solution
- Step 1: Write the proportion equation
139,363,821.58 : 209,032,197.20 = 42,320,369.92 : x - Step 2: Convert to fraction form
139,363,821.58/209,032,197.20 = 42,320,369.92/x - Step 3: Cross multiply
139,363,821.58x = 209,032,197.20 × 42,320,369.92 - Step 4: Simplify right side
139,363,821.58x = 8,846,319,910,694,388 - Step 5: Solve for x
x = 8,846,319,910,694,388/139,363,821.58 - Step 6: Final answer
x = 63,476,444.68
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.